Yes and No - (there's an old post somewhere on this subject) My ex-H was only 7 years older than me, and I had an A on him just before our D. It was also because of lack of sex and built up sexual frusration.
In this M, I came prepared, knowing what it would feel like if I was getting those triggers. As soon as I started getting them with OM, I tried to let current H know he had to "take better care of me" in that area. He never "heard" me, and the sexual frustration got so bad that I broke down. OM and I fought the physical part for 6 months before we finally agreed to meet. In hindsight, he should have moved at beginning of summer.
The hardest part was having someone so close, that I spent so much time with and really enjoyed, that I couldn't have. It's like a disease and a drug all in one being constantly dangled in front of your face, but geing taunted that you are in prison and can't have it.
I definitely fear that if there isn't some good SF with H, it could definitely happen again - that's why I "take care of myself" - to prevent a build up of frustration. It's hard. Everything else about my M, I can be really happy with.
How we met: He was my hairdresser for 3 1/2 years while I was married to ex-H. Enjoyed chatting with him, but never thought more of it, until I got D'ed. First date was a total fluke, but we had so much fun, that we were inseparable from that day on. BTW, sex before marriage was fabulous, and lots! I got pregnant one month after wedding, had horrible sex drive during both pregnancies and nursing - his age started showing in this area - when I was back to being a "horny 30 year old woman" he just didn't show back up for me.
Liza