This guy isn't necessarily the bad boy. (Any guy can be bad if he puts his mind to it.) He might not have many friends or hangs out with the "wrong" group. Usually these types of guys are more emotional about things and are sometimes pessimistic or cynical. However, they can be great listeners and understand if you sit down and have a conversation with them for a while. If you are still unsure who these guys are, some people label them the emos or goths.