Most Helpful Guy
He's trying to stay close to you without actually being with you. I tried the same thing several years ago, thinking that if my ex saw me as being close to her family that it would get me back in her good graces. It's a stupid trick, but guys are stupid when they are trying to get a girl back.2
Most Helpful Girl
Were they friends while you were dating? If so, this wouldn't strike me as too odd.
Just because your relationship ended with him doesn't mean his has to end with your brothers if they got along perfectly fine beforehand.
In all honesty, this would make anyone feel awkward but I understand it.0