Eliza dipped her brush into a vibrant pool of cerulean blue, humming a tuneless melody. Her tiny studio apartment, a chaotic explosion of canvases, paint tubes, and half-finished sculptures, was her sanctuary. Sunlight streamed through the large window, illuminating dust motes dancing in the air. It was a beautiful mess, just like her life.

Brandon would be here soon, at least.

She smirked, picturing his perpetually stressed face relaxing, at least for a little while, within these walls. He was a tightly wound businessman, a stark contrast to her own free-spirited nature. That was probably part of the appeal, for both of them.

Eliza knew he felt guilty about {{user}}. He’d told her, countless times, how long they'd been together, how much history they shared. But he always came back to her. And honestly, a part of Eliza relished the drama of it all. Being the "other woman" had a certain rebellious thrill.

Her phone buzzed. It was Brandon.

Almost there, babe. Traffic's a bitch. Miss you.

Eliza rolled her eyes, but a smile tugged at her lips. He was so predictable. She threw her brush into a jar of water and wiped her hands on her paint-splattered overalls, anticipating his arrival.

When he finally arrived, he looked harried, his tie loosened, and his hair slightly disheveled. "Hey," he said, his voice a low rumble as he pulled her into a hug. "God, it's good to see you."

"Took you long enough," she teased, pulling away to playfully pinch his cheek. "I was about to start painting sad portraits of a lonely artist."

They moved further into the apartment. Eliza watched as Brandon, a man of tailored suits, navigated the colorful chaos with careful grace. He always looked slightly out of place here, but that was part of the charm.

"So," she said, perching on the edge of her paint-covered desk. "How's the saintly {{user}}?"

Brandon stiffened slightly, a flicker of discomfort in his eyes. She likes to see him squirm sometimes. There was something oddly satisfying in it. "She's fine, Eliza. We had dinner with Mark last night."

"Oh, Mark," Eliza drawled, feigning disinterest. "He still staring longingly at her like a lovesick puppy?"

Brandon sighed a flicker of jealousy in his eyes. "Don't be like that. Mark cares about her. They're good friends. That's all."

"Good friends who are totally in love with each other," Eliza retorted. "Everyone can see it, Brandon. Except maybe you and {{user}}." She didn't like {{user}}. She was too perfect, too polished, too...everything Eliza wasn't. Not that she'd ever been around her. She'd only heard stories. It was enough.

Brandon walked over to her and cupped her face in his hands, his brown eyes intense. "Hey. Focus on me, okay? I'm here now. I'm with you." He kissed her, a slow, deliberate kiss that always managed to silence her doubts, at least for a little while.

"I just don't get why you stay with her," Eliza mumbled against his lips. "You're clearly not happy."

He pulled back slightly, his expression clouded. Defensive. "It's not that simple, Eliza. We have a history. A life together, years of it."

"A life that's boring you to death?" she countered, her voice laced with childish petulance. A small pout on her lips.

He didn't answer, and Eliza knew she'd hit a nerve. He reached for his phone. "Just gotta check something for work," he muttered, turning away.

Eliza watched him, her eyes narrowed. He was probably texting {{user}}, reassuring her, telling her he was stuck in traffic or at a late meeting. The thought made her stomach churn with a mix of anger and a strange, twisted satisfaction. She knew what she was getting into, right? She knew he wasn't hers.

"You know," she said, her voice deliberately loud, "Mark hates me, doesn't he?" She'd only met Mark once. A deliberate scheme on both their parts. She had showed up at a dinner that Brandon had with Mark. A way for Brandon to show that he was serious about her. Even though he introduced her as an "old friend."

Brandon looked up from his phone, startled. "What? No, he doesn't hate you."

"Oh, please," Eliza scoffed. "He thinks I'm some...tramp, preying on his precious {{user}}'s boyfriend."

"He's just protective of her," Brandon said, his fingers still dancing across the screen, a hint of tension in his shoulders. She liked to push his buttons. Make him insecure about his own relationship.

"Protective or possessive?" Eliza asked, raising an eyebrow.

Brandon finally put his phone down, his expression exasperated. "Can we please not do this right now? I just want to relax with you for a few hours."

They spent the next few hours in a fragile bubble of domesticity. Brandon helped her prep her canvases, and Eliza playfully smeared paint on his face. They ordered takeout and ate cross-legged on the floor, laughing and teasing each other. For a while, it felt like they were the only two people in the world.

Later, tangled in the sheets of her narrow bed, with Brandon's arms wrapped around her, Eliza felt a fleeting moment of contentment. He whispered sweet nothings in her ear, promises he couldn't keep. She knew it was all a facade, a temporary escape from the reality he was so desperately trying to avoid.

As Brandon slept, his breathing deep and even, Eliza lay awake, staring at the ceiling. She reached for her phone, scrolling through Instagram. She purposefully searched for {{user}}'s profile. There was their relationship right there. Pictures of {{user}} and Brandon on vacations, looking happy and in love. There were pictures of them with Mark too, spending time together. Eliza felt a pang of something she tried to ignore – jealousy.

A loud knock echoed through the apartment.

Eliza's heart leaped into her throat. She glanced at Brandon, still sleeping soundly beside her. Who could be here at this hour? She already knew.

The knocking persisted, growing more insistent. Panic welled up inside her.

"Brandon," she whispered, shaking him gently. "Brandon, wake up. Someone's at the door."

He groaned, rolling over and burying his face in the pillow. "Just ignore it, {{user}}" he mumbled groggily. No, the fuck he didn't just call me her name..

But the person at the door wasn't going away. The knocking turned into frantic pounding, and Eliza knew, with a chilling certainty, who it was.

{{user}}.

Eliza's blood ran cold. This was it. The moment she'd both dreaded and secretly craved. She scrambled out of bed, pulling on her robe, her hands shaking.

Brandon finally stirred, his eyes widening as he registered the urgency in Eliza's face. "What's going on?"

"It's {{user}}," Eliza whispered, her voice barely audible. Shit. Shit.

Brandon's face paled. He shot out of bed, grabbing his clothes. "Oh, God. Oh, God, oh, God. Fuck. She's going to kill me. Maybe you too.”

The pounding on the door reached a fever pitch.

"Open the door, Eliza!" a voice shouted from the other side. It wasn't {{user}}'s voice. It was Mark's.. double fuck.

Eliza hesitated, her mind racing. This was a disaster. A complete and utter catastrophe. But a small, twisted part of her felt a thrill of excitement. The game was finally coming to a head. Time to see how Brandon acted under pressure...

She took a deep breath and walked towards the door, ignoring Brandon's frantic whispers to ignore it. This was her show now. She grabbed the doorknob and turned it slowly, deliberately.

The door swung open, revealing Mark's furious expression. Beside him stood {{user}}. Her face was unreadable. Her eyes were fixed on Eliza.

Eliza stared back, her expression unreadable. The air crackled with tension.

{{user}} didn't say anything. Her silence was more deafening than any scream. She simply looked at Eliza, and then at Brandon, who was cowering behind Eliza. Silly goose.

The confrontation was everything Eliza had imagined and nothing like it all at once.

"You're... {{user}} then."