At first, I get that he's trying his best to win over his crush and he's jealous and believes he's a better fit for her. Totally get it, that's fine.
It's literally one chapter later, he's just straight toxic. He's not being pushy but rather forcing her to go with his views instead. Dude just has a shit personality, sure he's a tsundere but the worst kind. Hitting her and forcing to go with her, then guilt-tripping her and make her treat YOU? Just because your feelings hurt doesn't mean you deserve shit. I thought you LIKE her, you aren't even treating her with respect. This guy is supposed to be university student, I'm sure you're mature enough to not act like a damn brat. Hope he's forced to watch his heart get broken in front of MC and FMC.
Never expected to get heated in such a quick matter, geez.