If I was you I would ask your fiance' if he has been diagnosed with a behavior disability of any kind.And I would do some studying on some behavior disabilities. And then I with all things considered I would make a re evaluaction of whether I could take this long road of recovery with him and how much would he help himself. And ask him if he had a parent or partner who was unfaithful or a mentor who was unfaithful to their partner. Because these could contribute to some of his insecurities. Finding the root to his behavior could be the first step to his recovery and to a healthier relationship with you.Knowledge is power and to be for warned is to be for armed.

Smilie