I have a coworker who has admitted to me that she has really bad anxiety in everyday situations, and I've seen it in action many times.  Well fast forward a year and a bit and she's been avoiding me at work entirely after a miscommunication lead to her calling me an asshole (confrontation of any sort takes a massive toll on her so I can see why she's avoidant).  She won't come within 20ft of me.  She obviously won't talk to me.  She walks around the entire perimeter of our work area to avoid walking past me.  I've never given her any indication that I'd ever confront her or say anything to her first and I haven't, in the week that this has been going on.  I can tell that actively avoiding me at work is taking a toll on her, and I don't like that I had any part in making her feel this way.  I want to reach out to put an end to this but I'm not sure if I should.

I was thinking of sending her a text tomorrow along the lines of "Are we going to talk about what's bothering you at some point?" but I don't want to put her on the spot.  At the most it'll be a text because I will not do it face to face because I know she'll just retreat into herself and run, or have a panic attack. 

What should I do?  Or should I just let her have as much time and space as she needs?