What to do?!

There is this guy I dont really like that much that I knew back in HS. I refuse to talk to him at all. I dont like it when my family talks about him. He repeatedly tries to talk to me and I ignore him. He's an annoying kid and I just dont really like being with him. Sure hes fun to pick on but thats about it. I dont have to like the kid but I do have to love him cause he's a brother in Christ. This is an annoying perdicament I'm in.