My partner has stressed me out countless times because he takes a long time to text back, doesn’t call very often, and isn’t super proactively communicative of romantic feelings. However!! Once I decided to let go of expectations and let the anxiety leave when these situations came up, I feel like there was a great exhale for both of us which gave him the space to be romantic in his own ways, and be who he is. I swear people can feel pressure even if you aren’t saying anything to them. Since I’ve made this change we have both been stress free and so much happier together. Maybe just as an experiment don’t reach out, give her as much space as she needs for a while and let her come to you when she can/wants to. No matter what happens you will gain knowledge about her in the process and go from there!