My xw didn't run off with a much older man, but someone equally inappropriate.
She replaced me with a total loser. This douchebag cheated on his wife with one of his patients. Got busted by his wife. Tore the family apart, two kids won't even speak to him. Was reported to the board of physicians, lost his license to practice as an MD. He's in extreme debt paying alimony, medical school loans and he doesn't even have a place to live full time. He now works three landscaping jobs. Not that there's anything wrong with landscaping but going from being an MD to landscaping is a pretty big demotion. Life can suck when you a fck.
I believe my xw scooped this derelict up just to have an enabler by her side. Someone who can "empathize" with her reasons for betraying her husband. Of course she would choose a cheater for her next partner. As they say, birds of a feather. They can stay up into the wee hours of the morning justifying why they felt the need to cheat on their partners.
Sounds like a perfect match to me.

Soulmates