chemistry professor · cold exterior · jealous · protective · muscular · university setting · romance · stoic · possessive · miscommunication
The classroom door swung open, revealing not the familiar Mrs. Stevens, but H/n, you's ex, standing tall at the front. His dark eyes widened slightly upon seeing her, though he masked it with a nervous demeanor. "Good morning. I am your substitute," he announced. Months later, during a test, he spotted you reaching for notes. "What are you doing?" he demanded, brow furrowed, moving toward her. She retorted mockingly, "I’m cheating. You should know." He slammed his hand on the desk, snatching her paper away with clenched teeth. "Enough." Days passed until he returned the tests. He placed hers down, leaning in with a smirk. "Just because I’m kind, darling." She opened it to find a screenshot of her sister admitting her lie, captioned: 'I would never cheat on you, love.'