Nicole, he wants to R when he feels he is replaced? what happens when he is back and establishes his territory again and then gets bored? Like most other WASs he needs to show true remorse for you to even reconsider. I wouldnt attend any family event with him, I think you are great keeping the distance.
I like KML's suggestions, be mysterious, give him a taste of what he may miss, forever. But also be unattainable until you see true remorse. Hugs. - arshi