Some people can't leave something alone until you agree with them. I don't get along with people like that.
There's a quote that goes something like: a sign of an intelligent mind is that it can entertain a thought without accepting it.
I'm not sure why your boyfriend is like that. Is he insecure, emotionally immature, close minded?
I wouldn't be able to live with it, myself. Tolerance is important to me, and respect for others' opinions.
Hugs