Grass is greener scenario.
It's crazy because these men who were able to get anyone they wanted will tell you it was fun for a while and then got old. They say it's much better to be with that one woman who loves you in spite of and you can be yourself with and enjoy sex without wondering what the motive is.
And guys if you want your lady to want it as much as you do, then you need to do your part. Make her feel beautiful and adored. you will get anytime and however you want it if you do that
Regarding grass is greener. I've had a great girl some years ago... personality, sex, everything was close to a very good match. Yet I thought that grass is greener on the other side, that and other stuff mad the relathionship run it's course. Guess what...... some years went by and I found out that.... grass may actually be a lot greener! lol
If I stayed with her I'd have missed on so much even more mind blowing sex, different personalities, different experiences. Tho' it messes you up in some way... you become addicted to that change, whether it is every few months or every few years. Very hard to resists, esp. when you can and when you know the game well.
Good advice regarding making them "want it", but a natural sex drive must be present too.