I don't know if I should be with him

I've been with my boyfriend for a year and I don't think things are going great. He says he loves me and that I'm the most important thing in his life but I just don't feel it. He isn't affectionate with me, aside from when he wants sex, he doesn't say nice things to me, I really don't know the last time he said I looked nice or he liked something about me, despite me frequently complimenting him and making an effort to make him feel good. He's called me names in the past, and makes everything about money, despite him making quite a bit. He says rude things to me and when I tell him how his comments upset me, he turns it around on me by saying I'm too sensitive and don't understand sarcasm. I have this nagging feeling that I should just rip off the bandaid and break up with him so that I can find someone who's a better fit, but then I feel guilty, I tried breaking up with him once before and he cried and convinced me to stay and try to work things out. He said he'd change and he did for a short time, but he's back to doing the same things as before. I feel like if I tried to break up with him I'd be a liar, like I didn't do what I said I would by working things out. I don't want him to hate me think I'm a bad person by breaking up with him, when I tried to before he said that he had thought about killing himself and I don't want that to happen. I don't know what to do, I want to find somebody who treats me like I matter to them, but what if I don't find that? I'm wondering if my current partner is the best person for me, I don't want to end up alone but I'm unhappy with how things are currently and I feel kind of lonely.