I didn't notice that your grass is greener; I was too busy working on my own yard.
Thomas and I were classmates in high school, and for his womanizing habits I really disliked him. He certainly was smooth while I was a bit shy. But then, the idea that you go out with a girl for a few weeks and then dump her afterwards struck me as insane. When I am in a relationship, I want it to last.
We had a high school reunion when I was in college and I brought my girlfriend at that time along. Of course, Thomas spent an hour talking to her but I didn't care. He had already bloomed while I was just getting ready for life. Looking back, I find this episode a superb example demonstrating that when we always focus on what truly matters to us, jealousy doesn't come up.