She was mostly a waif and is currently in hermit/waif mode as far as I can tell. Very clingy. She never was verbally or physically abusive but mostly acted out with infidelity. This time around I told her I wouldn't put up with other guys, and I believe she understands I am serious as I was 100% no contact during the time we were apart.
Do you not find it very stressful wondering if infidelity is just more craftily hidden now that she knows it's a dealbreaker for you? Ultimately the wondering ended it for me because I couldn't really believe that a pwBPD sticks to their vows beyond their next mood change.
Long , I can honestly say ... when I get down or sad ... I think to myself ... how miserable I would have been to always looking over her shoulder to see what's she up to... who is she talking to ... and god forbid I piss her off ... . The time I found out she cheated on me ... she told me it was because of a fight we had... . I actually apologized to her for putting her in that position ... she cheated on me ... and I was the one apologizing ... . over the last 6 weeks with NC
I can't believe I disrespected my own values like that ... . Believe it... .when you're in that position, you only put out fires really. You've basically obligated yourself to that person by this time... .that you've become so co-dependent that you don't even know who the hell you are anymore... .I heard every excuse in the book for her promiscuity/infidelity like "we weren't together at the time!" (had a fight hours before), or "I did it to get over you!", or "you made me feel so unattractive that I had to do it... .so I could feel attractive!" That last one? Wowza... .who thinks like that?
But the original question? In my case they certainly did get worse. It went from crazy to insane... .I know that just my presence made things worse for her... .Staying with her was bad for both of us. We both kept coming back... .for me probably the idealization and sex... .for her probably the feeling wanted and the sex... .The sex was really the only good thing in this relationship and really intense sex seems to be a factor in most of these BPD relationships... .I'm guessing due to the idealization stage?... .whatever the reason... .It finally ended with an attempt on my life by her, $4000 worth of damage to my car, and some serious legal trouble for her... .strained friendships,... .Plus about 18 months of PTSD from the whole traumatic experience that had serious effects on me becoming involved again with someone else. Parts of it I may never get over.
There is a page somewhere here on this site that talks about opening the door for "very bad things to happen" when staying with a BPD partner and these recycles. Break them and get on with your life... .Save yourself from what I went through.