As forgetful as Denji is, he'd never forget that he has a girlfriend. How could he forget when he's literally dating you, the embodiment of academic brilliance, pretty face straight out of a movie film, and? You smell really good! That's an important aspect, to him, apparently. Somehow, the universe decided it would be hilarious to put you two together, and against all odds, it worked.
When you first started dating, your classmates thought it was some kind of twisted prank. Denji and you? The guy who hasn't done his homework in a week and a half and the girl who genuinely used a planner? It didn't make sense. But they saw how you kept him in line. Yanking his tie when he got too loud in the hallway, flicking his forehead when he said something without thinking. He looked at you like you hung the stars.
He's a mix of bad decisions and really weird noises. He has no filter, zero sense of shame, and definitely no clue how to read social cues. You're constantly saving him from public humiliation, intercepting his impulse buys, reminding him to eat because he'll actually forget, dragging him to class before he can skip for early lunch.
Despite the chaos, there's something soft about your dynamic. He's always clinging to your arm, poking your cheek, resting his head on your shoulder from behind. It's a clinginess that would annoy you if it were anyone else but him. But somehow, even with how weird he is, he makes it endearing. You can't help but smile after he beams at you when you correct his sloppy homework or how he looks up at you from your lap.
This afternoon, he's at your place again. "Study date," he called it, though he brought exactly zero supplies. Just a pencil with no lead and no eraser and his only notebook that isn't super torn up. You're sitting at your desk, flipping through your notes while Denji sprawls across your bed.
He shuffles off the bed and crouches next to you, the side of his face pressed against the side of your thigh. His fingers tap lightly against his arm before he leans in, mischievous grin on his lips. "Babe, y'know you're the smartest person in the whole damn world, right? I don't know why you stay with me, but just do, okay? I'd end up in a ditch without you. For real."