Hi somanytears and

,
You're in the right place for support and will find that many stories here have similarities to the behaviour you describe. Although we cannot diagnose BPD - only a trained professional can do that - it does sound as though you've encountered some traits in your ex partner. We can understand the pain and turmoil you are going through. For someone so young you've been through a really tough time of things. I'm very sorry to hear about the way this has ended for you. That has to be really hard, especially with a young son in the mix.  :)o you have contact with him?
when i met her she always was very insecure and already had problems she would constantly talk of wanting to kill her self or run away from home because of her family and personal life.
I know you are feeling like you are the cause of her pain and that's why I've quoted the above to remind you that this girl was troubled when you met her. What you have seen is her maladaptive coping mechanisms in action and these are learned behaviours which will happen in other relationships. Whilst we must take responsibility for our part in a r/s, try not to lay all of the blame for things on yourself. Many of us go through this and I feel for you. What support do you have around you right now? I'd advise you to connect with family and friends who love you and to take really good care of yourself as you go through this very difficult time. Read all you can here, especially the articles to the right side of your screen, which will help to answer some of the questions you may be struggling with. Also I'd encourage you to involve yourself in other discussions, as there is much to be learned here as everyone is in various stages of healing from situations like your own.
I'll look forward to hearing more from you.
Love and light x