How do I move on?

I met the perfect guy early this year... he didn't catch my eye immediately, very average looking but when we talk it's like no other. I fell for him for his personality. I never got along as well as with him.

He confessed to me that he liked me, but after 2 weeks he retracted it. Idk why he would change his mind on me that fast either.

Our conversations are still great, I don't know what changed. But now I have no other choice but to move on. How do I move on?

This is the first time I liked someone thoroughly