
I'm sorry for what you're going through but glad you have found a community where many of us have been through similar experiences, and we can learn from each other. From what you have written, it seems clear you will get good ideas and support here if you continue to read and post.
Is she still in jail? For how long? How long do you have maintain no contact (NC) with her?
I would suggest that during this time that you cannot communicate with her that you learn all that you can about BPD. The knowledge will help you greatly in deciding how you want to manage things in the future.
It helps if you read the posts of others here. Not only is there a lot of wisdom in the posts, but there's a lot of support and you'll quickly find that you are not alone. Also, as ozmatoz
Come back often, and ask, ask, ask.
Writing about what is going on and sharing with others is therapeutic.
I look forward to reading your posts in the future. Take care of yourself and you kid.