The Fiancé He Severely Underestimated

My fiancé Jax and I built our Las Vegas empire from nothing. After fifteen years, he betrayed me for a "pure" girl named Ember, sacrificing a piece of our empire for her. He told our friends I was "too ruthless," and that he only felt "human" with her.

He arrogantly believed I could never leave, that I needed our empire-and him-too much.

To prove her victory, Ember found my mother's last keepsake, a small music box, and shattered it at my feet.

The man I'd sacrificed everything for saw me as a cold, calculating machine. He thought I was ruthless? He hadn't seen anything yet.

He believed I couldn't leave him. He was about to lose everything.

I picked up the phone and made a single call to his estranged, powerful family in D.C.

"Send him home," I said, my voice ice. "He's all yours."

Chapter 1

The diamond on my finger felt like a lie, a sparkling testament to a betrayal I hadn't yet uncovered. It was the ring Jax had slipped on my hand just last week, at the Bellagio fountains, a public spectacle that had sealed our legend as Las Vegas' s King and Queen. Everyone believed our fifteen-year partnership, built from nothing, was about to become official. I believed it too.

We were a testament to defiance, Jax and I. From the grimy back alleys to the gleaming penthouse suites, we had clawed our way up, side by side. Every scar, every victory, we shared. Our empire wasn't just built on concrete and ambition; it was forged in a fire that only two people who had nothing could understand. We were an unstoppable force, a legend in the making. That proposal, under the dancing waters, felt like the culmination of everything. It felt like forever.

My phone vibrated, slicing through the manufactured calm of my office. It was Carlisle, my head of security, his voice tight.

"Ava," he said, no preamble. "It's Jax. And Harris. Again."

A cold knot formed in my stomach. Gonzalo Harris. Our rival, the old-guard casino owner we' d been trying to squeeze out for months. Jax and Harris clashing wasn't new. It was business. But Carlisle's tone hinted at something more.

"What happened?," I asked, my voice flat, betraying nothing. My heart, however, was already starting to thunder against my ribs.

"It's... different this time," Carlisle hedged. "He's at the old warehouse we used for the downtown acquisitions. Harris is in bad shape. And there's a girl."

A girl. The words hung in the air, a silent accusation. My blood ran cold, a wave of nausea washing over me so violently I had to grip the edge of my desk. A girl. Not business. Not a negotiation gone wrong. This was something else entirely. My years of ruthlessness, my hardened exterior, felt like a thin veneer momentarily.

I took a deep, shuddering breath, forcing the weakness down. "Send me the location," I commanded, my voice regaining its steel. "And arrange for a clean-up crew. No loose ends." I had to see it for myself. I had to know. The doubt was a poison, and I needed an antidote, no matter how bitter.

The warehouse was a scene ripped from a nightmare. The air hung thick with the metallic tang of blood and the acrid smell of burnt wiring. Gonzalo Harris lay on the concrete floor, a crumpled heap, his face a mask of purple and red. My gaze, however, was drawn past him, to Jax.

He was standing over a young woman, his body a shield, his eyes fixed on her as if she were the only thing in the world that mattered. Ember Craig. The name, whispered to me by Carlisle on the drive over, felt foreign, wrong. Her clothes were artfully torn, her face streaked with dust and tears, but she looked… fragile. Innocent. Jax' s hand was on her arm, his thumb stroking her skin with a tenderness I hadn't seen directed at me in years. It was a raw, visceral infatuation that hit me harder than any punch.

"Well, well, if it isn't the Queen of Hearts," Harris rasped, pushing himself up on one elbow, his voice thick with malicious glee despite his injuries. "Come to see your king play hero for his little muse?" He spit, a bloody gob landing near my polished heels. "Jax here just sacrificed a multi-million-dollar deal, a piece of your precious empire, for this little street urchin."

Jax whirled, his eyes blazing, a predatory glint flashing in their depths. He didn't even look at Harris. His gaze was locked on me, a mixture of guilt and defiance. But it was quickly replaced by a furious protectiveness as he stepped fully in front of Ember.

"Shut your mouth, Harris," Jax snarled, pulling a gun from his waistband. The click of the safety being disengaged echoed in the cavernous space.

I watched, numb, as Jax aimed the gun, not at Harris's head, but at his kneecap. The shot cracked, loud and brutal. Harris screamed, a primal sound of agony, clutching his shattered limb. Jax didn't flinch. His eyes, dark and unseeing, never left Ember.

My stomach churned, but no new emotion registered. Just a cold hollowness. This wasn't the Jax I knew. Or maybe, this was exactly who he always was, just uncovered.

"Now, now, Jax," Harris groaned, blood seeping through his fingers. "Let's not be hasty. You care so much for this little bird, don't you? What if I told you I have her family? Her little brother, perhaps? A simple trade. You walk away from our properties, leave Vegas to me, and your precious Ember and her family walk free."

Jax froze, his face paling. He looked from Ember, who was now trembling visibly, to Harris, then back to Ember. The conflict was clear. His empire, our empire, or this girl. I knew the answer before he did.

A memory flashed, sharp and painful. Ten years ago, a nascent deal, a crooked city councilman threatening to expose sensitive information about our struggling business. Jax had been ready to concede everything. I had intervened, ruthless and cold, silencing the man, saving our future. He had called me his savior then, his rock. Now, he was ready to burn it all down for a girl.

"Don't you dare," I said, my voice cutting through the tension, flat and emotionless. I stepped forward, past Jax, ignoring his bewildered look. I pulled out my own phone. "Carlisle, execute the contingency plan for the Harris acquisition. All properties. Every last one. And send a medic for Harris. He's no longer a threat."

I looked at Jax, my eyes like chips of ice. "And you," I said, my voice barely above a whisper, "take your little project and go. Get out of my sight."

Jax stared at me, then at Ember, then back at me. He hesitated for a fraction of a second, a silent plea in his eyes, but it was too late. He gently took Ember's hand, his fingers intertwining with hers, and led her out of the warehouse. He didn't look back.

I watched them go, two silhouettes against the harsh glare of the streetlights. My feet moved on their own, following the echoes of their retreating footsteps. I needed to know where they were going. I needed to see just how deep this cut was. They led me to the dilapidated apartment building on the outskirts of downtown, the one with the fire escape and the peeling paint. Our first apartment together. The place where we had dreamed, where we had promised each other forever.

My heart didn't break. It splintered. Carlisle's voice intruded, a quiet murmur in my ear through the hidden earpiece. "His affair with Ember. It's been going on for months, Ava. Since the Bellagio proposal, even earlier." The words were an axe, chopping through any lingering hope. Months. The proposal was a lie. The whole legend, a sham.

I stood there, listening to the muffled sounds of their intimacy from inside our old apartment, the place where we had built everything. My throat tightened, a burning sensation clawing its way up. I closed my eyes, but the images of our past in that apartment, overlaying the sounds of their present, were a torment. The small kitchen where we'd cooked ramen, the worn couch where we'd planned our future, the narrow bed where we'd sworn eternal loyalty. It was all a cruel mockery now.

I turned and walked away, each step a deliberate act of burying the past. I went straight to the corporate office, my mind cold and clear. The 50/50 partnership agreement, the meticulously drafted document that bound Jax and me, lay on my desk. I picked it up, the thick paper feeling flimsy in my hands. With a savage, almost surgical precision, I shredded it. The sound was deafening in the silent office.

"He'll regret this," I whispered, the words a vow. "He'll regret every single thing."

Later that night, I found myself in the penthouse bar, nursing a single malt. Our mutual friend, Liam, was there, the only one Jax still confided in. I stayed in the shadows, cloaked by the dim lighting, listening. Jax' s voice, slurred but clear, carried across the room.

"Ava's too ruthless, man," he slurred to Liam. "She's just... business. With Ember, I feel human again. She's pure, you know?" He chuckled, a sound that scraped against my raw nerves. "Ava? She could never leave me. She needs this. She needs me."

A cold, hard laugh escaped my lips. It was a sound I barely recognized. Too ruthless? Pure? He still saw me as the ruthless, ambitious woman I had become for us, for him. He didn' t see the girl who loved him fiercely, who had sacrificed everything for our shared dream. He didn't see the broken woman standing just feet away. And he believed I could never leave. That I needed him.

The arrogance, the sheer ignorance of his words, ignited a fire in my soul. My heart didn't just turn to ice; it shattered into razor-sharp fragments, each one burning with a vow. He thought I was ruthless? He hadn't seen anything yet. He thought I needed him? He would learn.

I reached for my phone, scrolling through contacts until I found the one I had kept hidden, the one that represented a past I had always resisted. Jax' s estranged, powerful political family in Washington D.C. The Briggs. He never wanted to be associated with them, always prided himself on his self-made status. But secrets were weapons, and I had just found the biggest one.

"Send him home," I muttered into the phone, my voice devoid of any warmth, any emotion. "He's all yours."

Then, I hung up. The game had changed. This wasn't about love anymore. This was about retribution. And Jax Madden was about to learn just how ruthless Ava Sandoval could truly be. He believed I couldn' t leave? He was wrong. And he was about to lose everything he valued.