My advice Newman is to let them sort their own problems out. I have issues with my S18 and D20 who live at home and don't get along with their father. I often undermined him in front of them because I basically don't like the way he treats them. It caused all sorts of problems between him and I. Its a 180 for me to let them handle their own relationships. If they want an R with their dad its their responsibility to work on it and likewise the same goes for him.
I refuse to interfere any more in their R's. They are adults now its not my problem to solve.
