Hello people
I don't really want to write my story but I'm looking for answers to some questions, my now ex gf (undiagnosed) left me for good or at least thats when i knew about 15 days ago.
This last breakup actually started July 15, thats when i first got the silent treatment and of course it made me go ballistic and what made it worse is that i think she knew exactly i was going to react the way i did.
I did the same thing i did 3 years ago but worse, texting her several times, calling her even from different numbers and try to contact with all the different channels available but this time i felt so angry that i told her a lot of hurtful stuff... .i told her she was a rat, worthless, that she didn't deserve me and that she was nothing without me and i even made a threat about going to her work and making a scene... .trust me i would NEVER do such thing, thats not who i am but for some reason i said all this but i won't deny that a lot of what i said is true
Why i said those things ? She knows why but i want to just keep her history private plus few days after the official breakup i started writing a mini journal with all the details about our journey.
Anyway after all that happened she called my house with her mother and started talking with my parents, they told them i was stalking her and all the things i did and also personal conversations i had with her, in the end like the first time she gave me the silent treatment i finally had the chance to talk to her, apologized and genuinely started crying because of everything and that i didn't meant to say any of those things etc.
She was calm at the end of the call and told me that she was late for work so agreed to txt me later when she came back home to talk more, she did and we started talking again the rest of the week and got together that sunday; we had a minor discussion but we end up having sex and making love (for me there is a difference), we also talked about us and our love... .she told me how much she loves and that i really hurt her with my words, i told her the same that i love her very much, that we were gonna work hard to endure and that we both need to time to work on our issues but our love and feelings were mutual or at least i though.
Anyway that was the last time i saw her, we continued talking until thursday and that was the last time i spoke to the women i once knew; i don't want to talk about our last conversation only that she was a bit distant and cold, was supposed to txt before going to work but that never happened.
I txt her that night without getting a reply so i just assumed she was tired and went to sleep right away, the next day i waited to heard something from her but nothing and on sunday i sent her another txt and gave her a call but it went straight to voice mail (i think she blocked my number).
I decided to give her some space and didn't heard from her for 7-8 days, something special was going to happend soon (at least for me) and i wanted to share that moment of happiness with her so i try to reach her and around 5 am on a friday she returned my call, to make the story short it turns out that she is living with another guy for a week now (at that moment), she moved in with him

someone she barely knew (new job) and apparently they have life figured out and made plans she mention everything that i said to her during the silent treatment among other things... he said some words and it seems he doesn't know the true story regarding why was i "bothering" her; what broke me the most but also let me to not shed a single tear was the fact she told him all about me including something that she was never supposed to talk to anybody, this was something like a bond between, trust, that not even being in each others life was supposed to be broken but hey it did and with someone that she barely knows.
Anyway i haven't spoke to her since that day, she was supposed to return some items but its been a few days and I'm starting to think that i should forget about it because of how everything ended.
My question is, why did she bother with that little reconciliation ? and trying to understand the sudden shift regarding our love and of course the whole moving in so fast with someone new that she barely knows

I don't want her back in my life after knowing that she reveled that secret to this person, i don't think i even want her in my life as someone i once knew if that was possible
Will she forget about me and i can expect to live my life without fear of she trying to contact me ? right now I'm scared to even go to some places and run into her, i remember how she told me about a previous ex that she went crazy every time she saw him.
Im not even mad about she leaving, back in mind i knew this was going to end and thats why i never married her, i though her BPD was under control all this years and that i was really helping her, she was pretty damn crazy and with a bad reputation around here before we started our relationship but i dont feel about writing about her.
The worst part for me is not the lost of a relationship more like how this friendship was broken, deep down part of me thinks that can be salvaged but i quickly remember her betrayal of her word and trust.
Ps. pardon my english not my native language.