Hi Minspain and Welcome! ,
Whilst I'm sorry that you had to, it's great that you found us. Seems like you're in the right place. What you have experienced is shocking and no doubt painful from reading your post. That is a pretty huge and unreasonable request. How long were you with your exgf and is she diagnosed with BPD? Do you have any other children?
If you've not already had a good look around the site at the articles and lessons
then I'd encourage you to do so. One article I sing from the rooftops about which has been so very helpful to me is about Surviving the breakup with a pwBPD. As you've had more than one, you may find this as helpful as I did. It talks about the ten beliefs that can keep us stuck and helps to explain the dynamics at play which cause us to have difficulty detaching. I'd highly recommend this one. Hope it is helpful.
https://bpdfamily.com/content/surviving-break-when-your-partner-has-borderline-personality When you are ready to share more of your story, we're listening. It can be helpful to get it out and in a safe environment where you will be understood by others who have had similar experiences. Do let us know how best we can support you.
Love and light x