hey pelle1212, glad you found the group

There was a lot packed into the 5 month duration of your relationship... a lot. Anyone would be left confused and unsure what to do, after going through what you did. So it's a good thing that you recognize your confusion and lack of clarity, and you decided to reach out for support and feedback.
You're in a good place to take some time, to not rush, and to really think about and work through what you want going forward. It seems like you had a key insight here:
That would probably be what you could expect if you decided to return to a relationship with her, unless she voluntarily chose to seek meaningful, long term, BPD-specific treatment.
pelle1212, as I read your story, and heard you wavering between wanting to reconnect with her and realizing it could be devastating to you, this link immediately came to mind:
https://bpdfamily.com/content/what-does-it-take-be-relationshipGive it a read, and let us know what you think, whenever works for you.
-kells76
P.S. no worries at all about English, what you wrote was totally clear!
I've read through the text and it was a interesting read. I'm not sure I have what it takes as I'm no the most mentally strong person myself but at this point I have already pretty much told her that I would give her another chance and we have spent a lot of time together the last few days which has been mostly sweet but at certain times bittersweet.
I still feel like she doesn't even understand how badly she hurt me and what a huge betrayal it is to do such a thing which really annoys me whenever I think of it. On the other hand I've felt that I've gotten to know her real self a bit more and been able to get her to feel more secure and relaxed in my company which feels like it's an important step.
I've promised to give her another chance and I probably intend to do that but I've also made it perfectly clear that there will be no more chances. I talked to a therapist just two days ago and she agreed that from what I mentioned that my girlfriend should try and get some help to do some kind of evaluation whether she suffers from BPD or not.
Right now I feel like I'm walking on eggshells and that by not doing everything she wants and the way she wants it to be done I'm risking her getting very upset. She doesn't violently lash out and many times not even verbally at all but rather just go into a bad mood and harbor those feelings inside her. I have however managed to make her actually tell me when certain things annoy her which I feel is at least a step on the way
One last thing that really bothers me that I don't know what to do about is her extremely high sexual drive. I feel like I can't keep up with her and before I knew her she really never seemed like the type. In fact I've recently found out what I had suspected ever since we had sex the first time that she was a virgin when she met me. I'm not the most sexually experienced person but when she wants to rarely do anything other than have sex when in the home I feel completely exhausted and pressured due to my own inability to completely satisfy her.
I appreciate you all taking the time to reply to me as I feel really lost right now and feel that my own emotions are really all over the place