My brother is a groomsman and my sister in law is a bridesmaid in our wedding. My FI has expressed that he would feel awkward with my brother at his bachelor party with all the guy talk and stuff. And my friends find my SIL too type A and have hinted that they don't really like her. Should I tell them they shouldn't come? I don't think they will mind, they just had a baby and probably were thinking of not coming anyway.