@tyme @DontLookStrickn this does not sound like bpd to me....I saw a therapist at a hospital once and described my best friends behaviour to him and he said it was bpd.  BPDs are not manipulative or sadistic, they are just messed up.  This guy sounds more like he has narcissist traits.  The fact he is cheating on you etc, putting you down.  Just research a bit on narcissism to rule that out...