...but the pain it's causing (and will cause) son. ...
The way the adults interact is a big factor in what type of pain the child will have. You as a man are the protector. You as a man can have adult conversations with your dad that should result in shielding your child from all of these adult issues.
The four agreements was a great read for me. Every time I read it, I get something new.
"What is best for my kids is best for me" Amor Fati Link to quotes: https://www.divorcebusting.com/forums/ubbthreads.php?ubb=showflat&Number=2879712