His psychological tests should be in on Monday (3 days) and we will know then. His therapist said some of his results are leaning towards a personality disorder, so I think I might be right. My therapist thinks so too. 

I need help bc our situation is not technically ex, but not bf either. We hang out a lot and spend most of our time together. No R rated things though. 
He has cheated (sexting, he said he didn’t meet up but I’m not sure) reached out to my estranged family and friends and spread horrible rumors and lies and they’ve reached out with extremely hateful messages, he has called me names, hung suicide over my head etc. 
Yesterday he revealed to me he has been lying to his therapist and not telling the truth so he won’t look like the bad guy. He said he goes in there and plays the victim. He also revealed more lies he told to my estranged family and I cried for hours. 

We talked afterwards and it was fine-ish. However today it all really sunk in and I was pretty upset. I got home and I wasn’t mean, but I told him how I really felt and said when the lease is up, I’m not sure I want him here anymore. (Which we have discussed before. I told him if I feel we aren’t working, then when the lease is up, we’re done.) I told him I can’t trust him. I’m really not sure what to do. My therapist told me he is not trying to hurt me on purpose if he has BPD, and from what I know, BPD is so difficult and I don’t want to leave him alone with it. I keep getting hurt and he doesn’t respect boundaries I set and I don’t know what to do. His therapist suggested couples therapy but I’m only 22, I feel too young for that. We are going to try though. What should I do? I don’t personally suffer with BPD, so I don’t know what he’s thinking rn. He was very defensive and started saying things that weren’t true about me and how I was being mean but when I asked “How?” All he could say was “your attitude is mean.”  And he looked at me like I was crazy and asked me what was wrong with me? He did a lot of exaggerated facial expressions too so I’m not sure if he was lying or actually feeling the expressions he was showing. He also said he wouldn’t pay this months rent even tho it’s almost December. 
He isn’t on any medication and obviously isn’t getting any help from therapy bc he isn’t telling the therapist the truth. I don’t know what to do. I feel like I’m at a cross roads. 

I’m always stuck between how can I make it easier for him and how can I make it easier for myself? And sometimes I think it would be easier to leave but I feel torn. Maybe once he starts telling his therapist the truth and starts medication it will help? I don’t know and should I wait if that’s the case. I’m so confused and honestly hurt. I try my best to be so patient with him even when he makes me feel like shit. 

If any of you have been in relationships, what made it easier for you? Is there a certain way I should go about things with him?