Are there friends or family who you can never be angry with?

My DH's old roommate- My DH doesn't understand why. I've heard some stories that should bother me. DH's roommate is also gay so I feel closer to him than DH's guy friends.

My brother- He asked me over Easter about why we weren't pregnant yet then he says this little zinger... "Well, maybe you guys aren't doing it right" I ignored him and didn't call him out on it either. Next time, maybe I will.

I think it has to do with their personality.