To feel annoyed with him?

[BlossomOnTrees]

One of my sisters boyfriends said to us all

'Kara can be a bit odd at times. Especially with her communication style.'

She wasn't there and although I agree with him in part, I do think it was off saying that in front of family and mutual friends.

Who is Kara, your sister? Bit rude of him to talk about her like that in front of her own family, what kind of reaction was he was expecting