Wow so many red flags and you're still attached to this guy. This is a classic case of toxic relationships. A very good friend of mine has a very similar problem with her bf.

You need to break up, like ASAP. I can't stress this enough. You're not able to leave because that's how toxic relationships are. The toxic becomes normal and you can't see anything else.

Leave him, block him everywhere, don't see him in your college. If he comes near you, have your camera ready and tell him that it's over. He's not worth even 1 second.

Remember this is your chance to leave a guy who has no accountability or responsibility or even basic manners. I hope you leave before he has done something much more worse to you. You might need a strong friend around you, preferably someone in your college who will stay alongside you and will help you get back to healthy living.