I officially don't understand anything about love anymore

I met a girl and we texted till late at night every day, went to a movie together, she came to see my performance in a theater, stayed longer so she could talk to me afterward, we flirted with each other (or I guess I thought we did) and everyone around me said she definitely liked me, no doubt about it. That's what I thought too, it felt really good. But then she asked me if I had a crush on her, and I said yes, expecting her to tell me that she had a crush on me too, but then she said she didn't. Then we both cried. It was weird, man.