Belizabeth,

I'm very sorry for the hurt you're feeling. Let me quote you on some of your questions and see if we can get something going here.
Some of the outbursts from this relationship really made me feel as if I was losing my mind and like I was the problem.
How are you getting on with this right now? Many here, myself included, have struggled or are still struggling with these things.
She needed every single ounce of my time and attention I would take her on dates and an hour later she would be saying how much she missed me (we lived together). I couldn't understand this behavior as I am someone who enjoys ALOT of alone time.
I can relate to this. My ex started out with saying she has great need of her own time and space (I felt it was almost a warning), but soon she went from that to being very very needy. Texting frequently, which I at first thought was charming - when it was really one of the

. And when I, around one year later understood and communicated that I need time alone now and again she started panicking and threatening me. Ultimatums.
I feel like I just got hit by a train! I really don't know how to heal from this and my entire perception on people has changed. I used to be very out going make friends easily and very trusting with the right people but this has made me question every aspect of humanity.
I understand. Trust is always the hard bit, for non-disordered and disordered alike. It is at the very core of many problems. How long has it been since you broke up? Believe it or not, the shift in trust and view of others
will change to the better, eventually. Don't rush. Also, many of us here probably have a need to heal from wounds inflicted on us even before the broken relationship - taking your time to heal is essential. Have you received any help from a therapist in setting healthy boundaries for the future?
However I am happy that I ended the relationship, she seems to be the one who leaves all of her lovers in very cruel ways.
Please listen to yourself here. This is good. You are detaching yourself from your ex in validating yourself and drawing this line between you. Do remind yourself of this from time to time

do people with BPD tend to manipulate therapist?
Yes, this sometimes seems to be the case from what I've read. If the disordered person isn't willing to change, as they seldom are, they can end up manipulating and/or blaming the therapist and then end the therapy. My ex completely idolized her first therapist. Once she even said "... .I mean, it's not that I'm in love with him or anything... ." (Thinking of this I feel sorry for my ex. Living in constant confusion must be extremely tiring).
... .she would tell me he would tell her he didn't even think she needed therapy and was a very "enlightened individual"
Yes, she would tell you that - NB it might not even be
completely true that the therapist said this. I do understand it made you feel more crazy. Point is: I would suggest you try not to think of these things, because you won't end up understanding your ex's behaviour more thoroughly.
All of this is hard, I know, but please let me remind you that the future is now all about
>you<
Best,
Keef