We recently found out that my father in law is cheating on my mother in law. My mother in law doesn't know that myself and my husband know. She finally confronted him yesterday and he told her he is happy doing what he's doing. I feel so bad for my mother in law. I just want her to know that my husband and I are on her side but she doesn't know that we know all of this. She has only been talking to my sister in law about all of this. It's to the point where she has started to lose weight and has also been super stressed but she stil doesn't mention anything. I just want to hug her and let her know we are here for her.