@philia093sgf +if they’re close enough to be catching up 1 on 1, probably likely he’d take the chance to tell her about the relationship. Personally I think you’re way overthinking this.
@philia093sgf This entire thing seems to boil down to you not particularly trusting either of them, and/or insecurities. Bro wants to catch up with a friend, neat, not weird. I agree that he should have said something prior, but friendships shouldn’t stop just because you’re in a relationship.