I agree with both positions:

1. That professionals should act professionally
2. That professionals shouldn't be required to be perfect and/or accommodate each and every patient's every request for dialogue during non-scheduled times.

I think OP's situation is a perfect illustration of what it's like to to get frustrated by living in a an imperfect world. The "cognitive dissonance" that that we all deal with when we smack into that reality like a bird hitting a window. That is, what seems clear to us isn't always navigable.
And in this, I really empathize with OP... it hurts.

To me (in regard to relationships), these are the times to ask questions of the other person and do less assuming.
Never easy for those of us who live this life of looking to others for guidance. We get hurt and insulate and isolate and end up not asking because we feel awkward... which is often because we are socially unskilled.
And to learn these skills we have to do the very thing that makes us feel awkward, fail at it and try again from a different tact or allow the possibility that the other person simply has a different perspective that conflicts with our own... which is no reflection on us.
(Some people just won't see eye to eye with us... no harm, no foul... just different.)
JMHO.