Normally, A bully is someone who has been bullied themself. Sometimes they will let their emotions out on other kids who don's deserve it based on what may be happening in their life.
Explanation:
Close relationship in my own understanding is an interpersonal relationship that involves physical and emotional closeness or togetherness.
Well, this is an opinion based question so it could go either way. I think it’s difficult because like anything, s*x can be an addiction. Though there is therapy, getting someone to do the act can be cheaper & easier.