Sometimes people's friendships change when they're involved in a relationship. Was your fiance trying to contact him over those two years, and getting no reply at all? Or did he reply, just not in the manner he used to? I'm sure you'd agree, having a girlfriend does take up quite a bit of time, right? Were they fighting at the time of the 21st birthday party? Or did something come up, and he just couldn't make it? Life does have it's way of interfering with plans. Taking all of that into account - Only your fiance truly knows whether he wants his friend to come over or not. If it were me, I'd give it a try. 'Best mates' are hard to come by.

Friendships are hard to come by and complex: It is difficult to understand the entire history of one. Words don't every really explain the depth of feeling, the good times, the bad, etc. Like that time his bud picked him up at 3 a.m. when his engine seized up. There really are no words to describe the deep sense of appreciation, for instance or to describe how it feels to know that you can call someone at an odd hour in the morning. Things happen. People grow and change. Perhaps there is a new and different type of relationship that these two can have that will benefit them as more mature men. Why NOT invest in seeing what will happen. What is the worst thing that can happen? It seems to me that to extend the hand of friendship, especially when the other fellow is willing, is a win-win, more mature alternative. If it doesn't work out, nothing is lost: nothing is gained. If it does though, then he has gained the benefit of a deep friendship, and all the maturity and experience brought about by the work it took to repair the relationship. But if he doesn't try, he's only gained the petty benefit of being "right" and "standing his ground..." which really isn't worth shit, right. In the final analysis, it's your fiance's decision. Try not to take the decision away from him. And even though the history between them might have hurt your feelings, if he wants to patch it up, support him in that effort. Children run away with their toys and they can never be BFF again. Adults have more abilitiy to repair and turn rifts into deep future bonds.