Why I fall in love with him?

He was just a crush after a very long time I really fall in love with him, I don't know why as we are not friends and we never talk, we were just make eye contact, my heart hurts all the time thinking about him and I cry I was chasing him sometimes he acts he care and sometimes he acts he doesn't care and ingore me and I can't talk with him
Why I fall in love with him?
Why I fall in love with him?
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