Why not approach this issue, head on, with your husband? In a lighthearted manner, you might want to make a remark, like, "You look like you really are tuned in to..................."!
Be upbeat, and try not to make a big deal of it. Instead of being the opponent, relate as a "co-conspirator". "Yeah, I certainly can understand how you feel. She is one teriffic gal. Your cousin is one lucky fella. If I were a guy, etc."
If you have good communication with your husband, a little talk, friendly and non-confrontational, just may help to make you more comfortable, and defuse the situation. If he is able to talk to you about his feelings, and you behave in a non-judgmental way, it will only make your marriage stronger.
Oh, and welcome to A2K!
Good advise. That is how my wife would do it.
