Help idk what to do anymore

Me and my boyfriend have been together for 1 year and 11 months. Ever since he started college my trust for him went down a lot because he’s lied to me about a couple things.

For the past month he’s been being very bitchy towards me and idk what to do we’ve done nothing but argue with Each other, I’ve always been nice during the arguments but he seems to just get more mad at me when I have done absolutely nothing and it’s just so weird because it’s random that for the past month he’s been being bitchy to me for no reason and I literally have done nothing

He tells me everything bad that happens when we argue is my fault and that I need to apologize for that, so than I apologized but he was still mad I told him that if he wants to continue this relationship that he needs to tell me what I actually did wrong even tho ive done nothing and I also told him he needs to work on his attitude, I was also calling him and he kept declining it on purpose and than told him it’s my last time calling if u don’t answer we’re over and I’m not seeing you anymore and he didn’t answer so I stopped calling and texting and than he starts talking about how he’s mad that I would abandon him like that

N lately because of the rough patches in our relationship I’ve been struggling w some heavy depression and I have been struggling w it since I was 12 I told him that him treating me like this is making me wanna end it all but he didn’t care

What should I do? Advice? Has this happened to anyone else??