He comes back when he needs a friend, with that leer and knowing look and manner of speech. He has said that he hates you and needs 10 years to heal. He’s bitter against you. He has intentions on taking advantage of you and probably in many moments doesn’t feel guilt for it. He might bring up the past and your tenderness towards him in the past. Do not feel guilty about the tenderness or wildness at the heat of the moment; instead take it as a matter of fact that tenderness or wildness will not continue. And he hurt Jo.