If you find out that your best friend is developing feeling for you and the feelings are in no way mutual (共通的), the sooner you communicate this the better .
Sometimes having to be the person who does the rejecting is __1__ than being rejected, ___2___ the person you have to hurt is your dearest friend. The key is to be gentle, but not so gentle that he or she doesn’t get it. If you ___3__ it before he says anything , it is possible you can __4_ him some of the humiliation(羞辱). You can just happen to mention that you are so happy that you don’t have to___5__ the ups and downs of romance with him. “Aren’t we lucky to have such a close friendship without having to worry about?”
