You can't make him repent and admit he is wrong, but you can repent of your anger and forgive him for being pathetic
Discussion
I have forgiven him.
The hard reality is that, by clinging to sin, refusing to accept it, insisting I swear fealty to his second wife, dishonoring my mother, he has forced me to place a boundary around him.
I love my dad, but I love my mom, too.
I totally understand. It's too much to ask. However, your mother should also not be left completely indemnified in the matter. You can love all three, and not be susceptible to your mothers jealousy. Your father insisting you kiss his new wife's ring, on the other hand, is also crossing the line. Just remember, your time with all of them is limited.
My mom did the exact same thing. Love my mom, but she treats people like pawns in her life. Boundaries had to be set.