It doesn't bother me other than I know something is brewing when that happens.
It often helps to look at normal relationship dynamics and human nature first, before looking for the pathology.
There is a relationship issue.
You were there for a month and left - she could be trying to sort out if you just had things to do - she's not getting a clear signal from you.
Could she be sensing that the "physical intimacy" issue has you re-evaluating the relationship and she is feeling vulnerable?
You are both in a tough place.