Need help😔

It all started when I asked my boyfriend why he liked a picture of a girl with her nipples showing. He said “idk I just scroll and like pictures” and then I asked “do you like that?” And he gets mad at me. Some time went by and he starts texting me saying that I only text him to bitch and nag. He’s at college and barely has time to talk, and when we do talk I ask him about his day and some other questions. He says I get annoying when asking too many questions, so I stopped. I don’t get why he gets mad at me for wanting to talk to him. I can’t believe he said this to me knowing I have a history with self harm and suicidal thoughts. Can someone please help me idk what to do😢