Hmm.. An intresting situation. Perhaps you should Allow them to meet, and if they dont take to one another, then you have your anwser. If they do begin to like one another, Let them live their own lives. I Have come to know that if you step in the way of fate, Your just hurting your own cause.
excuse me, but, didn't you say you two have "nothing in common?" Shouldn't THAT be the reason to break up?
sooo, what do YOU think...about your life/relationship...the quality of both ...or does he tell you whether that's good or bad too?
maybe you should tell him what you just told us
Why don't you just introduce your BF to your friend and let nature take it's course.
People with differing interests frequently make good matches because they have much to share. However if one or the other has little interest in the others wants and likes (its okay to not like everything but (collective) you should be willing to try new thing and expand your horizons.
Its called growing together.