I just don’t know

My boyfriend makes me feel so sad sometimes. When we argue I always have to make him feel better first or he will not make me feel better at all and if we break up because I’m holding my ground waiting for him to fix things then we just end up breaking up because he is NOT going to be the one to come to me. When we’re happy things are great and he’s amazing but it hurts so much that during times of arguments he will not comfort me. I’ve talked to him about it but he just completely ignores me and says things like “well I called you” and during that call basically says “well you did this and this”. It seems he experienced something in a past relationship that makes him do that but I just don’t know what to do. It is incredibly heartbreaking.