If she called, it's because something's wrong. Or, my ex asked her to, to see how am i doing. I am afraid of being nervous again. Every new information i have of her makes me nervous. Anxiety !
congrats on making it 3 weeks, its no easy feat. i'm at 8 and i still find myself waking up to thoughts of her.
as for your above comment, i know the feeling. everytime i hear her name, or some off-handed comment, anxiety gets triggered. i do some door-dashing on the side, and once in a while drive through her home town, my anxiety gets triggered there as well. being human is a funny thing ain't it?
hang in there and keep keeping yourself busy. concentrate on the things that bring you get great joy. write, get a good nights sleep, eat healthy, stay away from anything excessive that is bad for you. honor any and all feelings that you have. it's ok to miss them, it's ok to hate them, it's ok to love them, it's ok to still think about them. let the feelings come up, let the feelings move on.
best of luck
r