Hi Miss my son,
I'd like to join
Kwamina and welcome you to the group

You are most definitely not alone we have other members who are in similar situations. I'm glad you jumped in and posted, this is a great place to find support, get information, learn about tools that can help, and just a place to vent if you need to. All of the members here have someone with BPD or BPD Traits in their lives we "get it".
Wow, setting a wedding date on the exgf's birthday shows a lot of jealousy and insecurity.
Can you tell us a little bit more of your story? How long have they been together? What is her (family/relationship) history if you know it? Can you share more about your son? What is he like? I'm glad to hear he is still reaching out through FB, as a mom myself I can imagine how hard this distance has been for you.

I hope to hear more from you soon.
Panda39