I can't advise you on breaking up because of this, but from my experience, it's not going to get better. I see it in my wife, and even more so, in my sister. In my sister's case, I feel that it's a learned behavior, because my late mother did this too. My BIL and I have had many discussions about this and he's coping, but I have a feeling that someday, my sister is going to push him over the edge.