I don't have any magic words to make it all better. It's terrible to watch our kids suffer. And the thoughts they have about so easily (seemingly to them) being replaced by some random women's kids. That cuts to the core, for sure.
(((Gerda)))
My daughter called a few days ago and cried on the phone for 20 minutes or more. I just held the phone, and said a few times I was sorry she was sad. Sometimes that's all they need. To just let it out to a safe person. Sometimes we don't have to do anything except be there and listen. Sometimes no words are necessary.
You are doing a great job, though. Listening, validating real, true feelings and thoughts. God is in your presence. Continue to allow Him to soothe you.