His mom and sister always loved his girl best friend, let’s name her Emma for the post. I didn’t know what happened until after my husband told me. My sil and mil started talking a lot about Emma after my husband went nc with her. My husband told them to stop talking about Emma and how it’s none of their business, since Emma never respected our relationship. They claimed were TA for cutting Emma off and indirectly blamed me for ruining my husbands and Emma’s friendship.