Most Helpful Girl
Talk to her about it. Even if she doesn't feel the same way, you can still be friends. You don't have to lose her. Just allow her to be who she is and don't try to force her into it. It might be slightly uncomfortable but if you're really good friends, you should be able to overcome that no problem!1
Most Helpful Guy
Talk to her.
If she doesn't like you back she's not gonna be a bitch about it if she's truley your friend.
It'll be awkward, but at least it'll be over with. And who knows? Maybe she'll like you too.
But in my experience, I've learned not to get my hopes up. I recomend the same to you.