How do I get over a boy who doesn’t love me back (Info below) ?

I've known him for over half my life. We recently reconnected and I thought he liked me. Randomly one day he asked if I liked him or something after we got into an argument. I got scared and said no. Then got mad, said I “act like I like him” then when he doesn’t do what I want I treat him like shit? Then says “everyone I’ve talked to this about has said you like me”. Then he blocked me and told me to stay away from him. This was months ago and he still calls me by a shortened version of my name and still ‘touches me’ on my shoulder. How do I get over him? (Sorry if this is all over the place)

How do I get over a boy who doesn’t love me back (Info below) ?
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