Everyone likes to be liked, and I'm sure she'd be really flattered even if its not returned to you. Do you think your friendship's strong enough to hold if you told her? It's a gamble, yes - one that could pay of or hurt your friendship - and I know you probably, on some level, wanted to come on here and someone to give you a definitive answer of what to do. But only you can tell what your own friendships are like - bide your time. Don't do anything rash. But don't be defeatist, if you're close enough & well suited enough to being friends, then she'll understand.
Best of luck to you - try and stay sane!!
x