Recently my son asked me "why do you love him?" (That killed me).
First, I answered him rather fully. Then I asked him if he loves his dad. He said "yes, he's my dad, but I don't feel close to him much and if it weren't for you here, the family would not be together."
So I really need to navigate that. BTW, this is NEW to me. S25 did not say things like this before. He supported us going to Retrovaille and wanted us to reconcile.
I got the same speeches from D23 last year when she claimed W was 'going crazy' and that I should just divorce her. That was definitely tough to deal with, no doubt. Actually, D23 & D21 both said things like this.
I don't know if it's any help to you, but, I simply told them that I appreciated their input, but, our M was not really something they should be worrying about. I also encouraged them to keep their relationship with their mother on good terms, regardless of what the outcome of our M was.
I don't know how well it was received since D23 is still angry with her mom about a lot of things from the last two years. She's definitely more angry about things than I am.