There's a guy I have been friends with for many years now, and we're pretty close. He's called me his sister and I call him my brother, because we get on so well, we share so many similar interests, and we do everything together. The thing is lately I've discovered a bit of a crush on him. For a few months now actually. We still have fun, this isn't totally taking over, but it's starting to become apparent now. He tells me about his crushes and everything normal friends can do, but it's starting to bother me. I think that because of our 'sibling' like relationship, it's actually stopping us from anything more. But what's even weirder is that he might like me back, or at least that's what it seems like at some points. If that's true, is he trying to test me to see what I'll say about the other girls? Or if it isn't, should I tell him what I feel, or just not risk breaking up what we already have?