T.G.
I've never been a very jealous person, but when my husband and I got together I was certainly waiting for something bad to happen just because things were so perfect. My only advice would be that you need to work really hard at coming to the realization that it's out of your controll. If someone is going to cheat on you, they're going to do it weather you're worried about it or not. If he hasn't given you anything to worry about then just enjoy the relationship, and know that if things don't work out, as bad as it sucks, you will bounce back. Stressing out is going to get you nowhere except possibly pushing the good guys away. Good luck, and I hope this helps a little.