To: I liked this boy, but I didn’t even like him, I like the idea of him.
Me: We all change our minds about things, most of the time and so can you too – you don’t have to remain in contact with him, after all, you meet on a dating site and he lives a long way away from wherever you live.
Decide to have nothing to do with him anymore, block him and keep all contact with him in future, down to zero.
Look around for new friends to replace him.
you are answerable to nobody but yourself and the sooner you learn that skill, the better off you will be throughout your life.
Richard