It's so much easier to have people having crushes on you than to have a crush on someone. For the former, even though it might be a little awkward around the person initially because you don't really know what to say when you're around the person in question, it goes away quite soon (the awkwardness, not the person). For the latter, well, I hesitate to use the word 'crush' because it sounds really adolescent and implies blind attraction based on superficial reasons like looks or powerpuff-girl abilities. But to call it fascination feels like you're distancing yourself from the feeling.
Ah crap this is so embarrassingly teenage.