BPD boyfriend pushes and pulls-- I never know what to expect. Please

[k-a-r]

So, I have BPD as well but I'm getting treatment for it. He is not. Anyway, we broke up for about 6 months, did our own thing, I thought maybe he had changed so  I reached out and we began talking again. Then we were back together before I knew it. He seemed different, even told me he was trying harder. We went to a halloween party and he was a bit too drunk but all he said were sweet, assuring things to me. On monday we woke up in bed together and things were fine, we were intimate, all of that. Then when we started getting ready for the day he switched the flip I know so well, and began geting in a mood and giving the silent treatment. he essentially split on me. I tried to talk about what was wrong-- nothing. It wasn't until I went to his house to see him where he told me we need space so he can figure out how hes feeling (about past stuff, my ex friending him on facebook, me being taken advantage of my his sisters boyfriend) and he needed to figure out what he wanted. Yet he keeps texting me daily smalltalk, just distant. I know this pattern with him, he always does it and I cant be upset and HES the victim. He knows im Hurting and almost disregards it by saying things like i hope you slept okay  knowing hes the reason I'm not. i am unbelievably frustrated, these thoughts shouldve been dealt with before we got together but now i dont know what to do other than wait for him to come around or not. it sounds  messed up but i dont want to lose him. will he repeat the cycle and after a few days, think clearly and come back to me?

i need to add-- hes upset because he thinks i lied about a situation that happened, along with random little things i had no control over-- hes essentially punishing me.