I feel bad

I feel really bad because I just turned down this guy who likes me and were really good friends and now he's saying if I could what would I change about him to make me like him...whAt do I do??

It's best to love someone for who they really are, otherwise you're basically in a false relationship or whatever. Tell him he doesn't/ shouldn't need to change for you and you're sure he'll meet the perfect girl for him one day, but that girl isn't you. Hope this helps