I'm just lost again
You're not completely lost - you are here. That's a good thing.

I want to break the few days of NC we've had and call her. I know that if I do I'll have to put up with her coldness and "I don't care" attitude and that's going to hurt me even more but at this point I just want to hear from her.
Let's look at this from a behavioral standpoint. You know if you take action what the consequence will be. Do you really want to take that risk?
Take a look at this - Wise Mind - it has helped me keep things in perspective, even though I still feel challenged on some levels.
https://bpdfamily.com/message_board/index.php?topic=64749.0Stay strong, stay with us here. No need to cater to that voice and the feelings that you are experiencing. We're not going anywhere.