Gee, my 3rd wife was 25 years younger than I.
It didn't last.
When my wife and I were divorced I was 30 and had a girlfriend that was 21. It did not last either. Found out she was cheating on me and that the she was pregnant and didn't know who the dad was. She had a miscarriage so I guess I got lucky on that one. She was very materialistic. I ended up sleeping with all of her friends and then moved on. I'm not that great of a catch but the girls jumped at the opportunity, LOL. She must have said good things before we split.