What do you think about this?

I think your boyfriend does need to get a handle on his jealousy! That sounds like an insecurity problem on his part. I do believe that there is room to be respectful of his feelings, but ditching a long friendship is not the answer. Maybe sitting your man down and having the conversation about your friendship, and how if there was still feeling there you would have still been with him. What about a possible double date? Maybe if he gets to know the wife and what not, he will see that there is no threat and no comparisons. And maybe if he is still being stubborn, you should remind him of the immaturity of the situation and that he should be above it and trusting. Quite simply, he is insecure and not too trusting. Hope it works out for you!