Hi rzr-
So that is one of my concerns is she going to follow me threw life?
Borderlines hate to lose an attachment, it's abandonment, the worst thing that can happen, and what actually happened in the relationship is irrelevant, it's just a feeling, the core of the disorder. I've known my ex for almost 30 years, and we were only in a relationship for about a year of that, and yet, she's still tried to contact me randomly over the years. It's a great way to check in to see how your detachment is going though, by how much it affects you, and it's still early for you, so you can get good feedback on that detachment whenever she tries to contact you. And of course everyone's different, so she may just stop on her own, for her own reasons.
But then again this might be the end for us and I won't get my closure from this. I would like to talk to her one last time but I know that's not going to happen right now. Then I worry if I don't tell her happy birthday at least what will happen?
What do you want to happen? Most of us didn't get the closure we were looking for at the end of these relationships, which ends up being OK because we get to find ways to give it to ourselves, which can be more powerful.