Pearl, I think it is great you and BF are different. Think of all the new and different things you have experienced with him that you might not have done if you were more similar. I can say the same thing if my situation. For example, H got me interested in mountain biking and I broadened his horizons in ethnic foods. For activities I know H is not interested in, I reserve those for friends who like the same stuff as me. So your interests like the museum/ballet can always be enjoyed with great friends and then you and BF can try and find some new hobbies together. And it does not really seem like you two have a problem keeping busy - your social calendar seems pretty packed.
