Oh I remember you. I commented the first time.
Oh man. I had a chat with a friend this weekend about older men feeling the need to validate themselves with younger women. I would be pissed beyond the boundaries of fury - no one made him get married, no one made him have kids, yet he's willing to treat his loyal wife like shit to feel young again. Grow the fuck up. I'd also be pissed that it took you calling him out to have this all come to the forefront - and you spent time and energy trying to help him with his apparent problem in the first place, when really he was the reason it was all happening. What a fucking snake.
Not only did he hook up with two women he should not have been touching with a 10 ft pole (including the Granddaughter of the headmaster) - I mean come on, how desperate do you need to be, he did it in front of other faculty? Jesus. What a bunch of assholes.
That actually happened to me. My married boss made out with a girl in our team right in front of me. I bumped into them when I came out of a bar. It was fucked.
Hugs, babe. You're a loyal and supportive partner and you deserve much, much more in return.