I am 66 and my wife turned mean 3 years go. Nothing I do helps.
Tell your Dad I will pray for him and when he gets thru this tough time, it will get better for him.
Stand by him. My wife turned one of my sons against me and tried to do the same to my second one. Fortunately, he was smart enough to see that she was trying to play him.
When my parents divorced in my mid 20s, I took his side mostly. This time I am totally, cause I couldn’t stand his new family. I’m not in the best shape right now either. He sounded really bad, said this time’s worse than with my mom. So I’m hoping he’ll be ok.
That sounds like terror.
I am truly sorry for you.