re: Anyone else not on speaking terms with a parent?

I don’t speak to my father. Parents divorced for 23 years now. He married the woman he cheated with. Whatever. My issue is he has totally removed himself from my kid’s lives as well as my siblings’ kids lives. He hasn’t been to any milestone events even though he has been invited. He has totally shunned his own blood for grandkids who aren’t his..there are other issues but this one is the biggest grievance I have. You can’t speak to him about it because he avoids any confrontation. It is absolutely amazing what shame will do to a person.