PLEASE I'm in love and Just so heartbroken?

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Here are the details
-talked to this girl for 2 months
-she showed interest in me, she even made chocolates for me and my friends on valentines day
-I added her on Facebook and found out she had a bf
-I didn't care though and she never mentioned him
-he is long distance and they only see each other about every other weekend
-I asked her out and she said "your an amazing guy and your fun to be around. Got a great group of friends but I have a bf I should have mentioned him earlier, I don't want things to chan...I don't want things to be awkward between us".
We still talk and smile at each other in the halls. My heart is broken, I can't help but feel I will never get her and I don't think she will break up anytime soon and if summer break comes she might just forget about me in those 2 months what do I do?