Thanks for your comments! It's nice to know there are others out there like me, but I regret the commonality that led us to this forum. In all those years of supporting him in his goals, I never once dreamed that when we finally reached the summit, he'd push me off in favor of a younger model.
Alas, these students are EVERYWHERE! The first semester he taught, one of his female undergrads came to his office and told him she'd "do ANYTHING" do raise her grade. He was scandalized THEN - back before the MLC. Now? He'd probably go along.
On another board, I connected with several university wives, one of whom was divorcing her husband after 29 years. Her mother had gotten sick, she had to deal with hospital runs and end of life issues, and after she buried her mother and was ready to refocus on her world-renowned husband after about six months, it was only to discover that he was having a hot, steamy PA with one of his grad students, who had decided to fast track her career by becoming his 2nd wife. She got her wish.
Another was a female prof who said she's been in faculty meetings where profs "high five" each other for sleeping with students. She also said in 25 years in academia, the only prof she'd seen reprimanded was a woman who had a fling with a male student. It's a "good old boy" network for sure.
My WH and OW have been at this for 3+ years at this point. I've exposed and exposed and have only driven him further away. He refuses to believe that she's using him. He'll get his wake up call eventually...