You know what I can tell you this because it is my current situation. My boyfriends ex cheated on him (about five times) and I think because of this he is quite a jealous person, he ties to disimulate (because I can;t put up with a jealous boyfriend) but i'll tell you what i told him:
Don't judge your current relationship based on your past one, THEY ARE NOT THE SAME PERSON and he should't have to pay for what the other person does. If you can't deal with it and you want you current relationship to last, I suggest you seek professional help for the sake of you marriage.
It is not nice having to feel that you partner diesn;t trust you and that you can't even look at people walking because of fear that you'll make a scene. I realize it's easyto say it but try to put yourself in his shoes, how would you feel if he acted like that with you??
Hope you can find a way to work woth your jealousy.