Falling in love?

I think I'm falling in love with one of my best friends, I've had a crush on them for almost 3 years and we are pretty close. I've tried getting over him and I even had two serious boyfriends, but when we break up I always go back to him. I've gotten some hints that he may like me back, but I don't know for sure. I try to compliment him, but I get really nervous and tingley. I'm usually a harsh person but he makes me melt and become so vulnerable. I would ask him out, but I need to know that he liked me back. how can I make him like me?
Falling in love?
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