There's this guy that I met at Bible study and I don't like him. He's a nice guy so when he sent me a friend request on facebook I accepted. Now he constantly emails me and I don't always reply immediately. When I don't reply for a couple of days he will email me and tell me that he's not going to email me anymore. I sometimes run into him because we live in the same town. He seems to have poor self esteem. Would it be really bad if I deleted him and blocked him from facebook? What should I do?