I'm close to my DIL and SIL. I refuse to interfere and if my daughter is having a problem, I send her a book on the topic rather than give my advice. She has children to consider and I'd hate to see them without their Daddy, a very loving father.

I never talk to my DIL about problems unless she brings them up. She's a wonderful mother to my grandkids and has tolerated a lot from my son. She knows I'll always be there for her.