You have to tell her. Maybe she likes you too, and she's waiting for you to say something. Or maybe she doesn't realise yet but she likes you too. She'll get over it and you guys will be friends again. I've had a break up with this one girl and now we're like brother and sister, and we're like best buddies. If you don't tell her you might miss out on something really big.
Send me a message if you wanna talk. We can think of something, I bet.
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If dogs could talk, this is what he'd say.