How can I .... ?

How can I not love my best friend anymore. We’ve been friends for 4 years now and I have feelings for him. And he doesn’t feel the same way. I’ve told him how I felt and all he said was that he would be supportive of me as a friend. I feel stupid for telling him and I want to continue to be friends with me but it’s hard with him now having a gf and avoiding my calls every now and then we do text but it honestly hurts me to talk to him. Knowing he knows how I feel and he avoids that part. Of course he lives in NY and I’m in Florida. I told him I’ll give him his space because talking to him hurts and he just texts me the next day like like nothing happened. Now I love this guy and would do anything for him ...... it just hurts knowing he chose someone else over me. 😥