My FMIL is throwing FI and I a "couples shower" in a few weeks at her friend's home. My sisters (one is my MOH and one is a BM) and BM (two other friends) were not invited, but my parents and grandparents were.Is it normal for BM/MOH to not be invited to such a shower? I don't care, and I'm sure my BM/MOH will be grateful to have a nikilynne-free weekend, but it just seems strange to not at least invite them.....