Hi Happygirl07,

I'm sorry to hear of your situation. Being kicked out and having to find a place to go is a lot of stress to be under. I'm glad you are with family right now, because having support in situations like these is so important.
I wish I could answer your questions, but as you know, we can't get into other people's heads and hearts. If your partner has BPD, there are some patterns that do seem to recur, but everyone is an individual. BPD is a spectrum disorder that features emotional instability, bouts of anger, and fears of abandonment, among other things.
I think the most important thing you can do is protect yourself and your child right now. I'm glad you have taken action on that front.
Do you feel safe where you are? Is your family supportive?
This is the time to rally as much support around you as you can. I'd avoid FB and anything that will escalate the emotions in this situation. I think a calm and stable environment would be very helpful for you at the moment.
Keep writing. Members here understand what you are going through.
heartandwhole