I still look at other women, but the thought of how bad it would hurt my wife to cheated on her leaves me know I could never do it. I can just tell that she'd never cheat on me either. Just a string feeeling.
When I knew she was the right one for me was a gradual process. It started when she didn't want to sleep together on the first damn date. I certainly would have, I know this is screwed up, but i respected her a lot for that. Then I found out three months later that she was "untouched". It also helped when I met her family and her parents got me loaded for five straight nights during that Christmas season. Having her family accept me made me realize that it would be that much easier to make things work.
She is seven and a half years younger than me. I met her in College. Weird, huh?