I agree with CarolW, if this girl really is embarrassed by you liking her, than she is not the right girl for you. But you can't just assume that she is. You have to make a move and talk to her, find out for sure. If she isn't embarrassed and also has feelings for you than you could possibly miss out on a great opportunity to get to know her and build a relationship with her if you don't talk to her. I say talk to her, give her an opportunity to share her feelings, and if she feels the same way as you do, GREAT!! Go from there and enjoy getting to know each other, and if not, then move on and I'm sure you will find someone even better who will feel the same way about you too
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