I think you respect their boundaries. If she is asking you to stop then she is feeling it as pressure which does not help your sitch.
If I was asked to stop the coffee, I would probably say soemthing like "That's cool, it was no big deal since I stop there most of the time anyways" then change the subject.
Of course if you feel she is uncomfortable with it, then I would stop it anyways or at least reduce the frequency for the same reasons
