I don't understand..?

Do you know the saying how "opposites attract" ? well that's pretty much how me and my boyfriend are. We have been together for almost 3 years. don't get me wrong we have tons of things in common. but I'm more a free spirit, glass is half full kind of girl and he's the guy that plays by the rules and is conservative. not that conservative is a bad thing, because I don't want him to have a huge ego to where it's annoying. haha! but still there's things that I would love to do and he always questions me why I want to do that, or what's the point of that? idk.. he doesn't even like to dance either. we've only danced once our whole relationship and it was because me and him placed a bet and he lost, so he had to dance with me. is there like something wrong with me? it's not that it's boring or anything, I just want to have fun with him and he doesn't really like to? idk.. help?