The grass is only greener if you're a boring wife.
Engage his sexual interest and keep things spicy in the bedroom.
If you offer him a level of kinky sex he's only read about, he won't stray. He won't even be tempted to.
"Love me for who I am"...
How ridiculous. He doesn't even know you. How could he?
Entice him. Make him interested. Allow him to fall in love. Let him get to know you.