Lost Im sorry for your H friend child..that is very sad
I understand when you say you want to tell H how you feel;; but he probably knows..this could push him away further Now might not be a good time to do it - especially if he is dead set on the D
It may be better to just try to incorporate a friendship- see if it goes anywhere
I do have a close friend who has maintained a close relationship with her XH family She also attends most holidays with his family and sometimes her parents come too they have been D for a long time
He doesn't mind her being there, but he usually brings his current GF it still bothers her, but she chooses to want to stay in close touch with her SIL and BIL so it works for her
It may be hard for you to be around him especially if he is going to be distant at the dinner but you can try once and see how it goes- start by being a friend,,or giving a smile to him--thats it
Gal , no R talks and maybe just work on being his friend-
married 14 years H 42 bomb 2/07 IDLYA D final 3 /09 M ow D ow