Is this really about the 5 minutes? or is this more about the meaning you place on those 5 minutes? Are there other areas in your life where you feel like you don't matter to people? Is this really the case of you not mattering to him, or is this simply about his office practices, completely not tied to his his feelings about you at all? Sometimes we put meaning on things that really aren't what is going on. That's good reason to discuss this with your therapist. I suspect he could help clarify what is going on and perhaps help you understand he isn't do this out of lack of caring for you. He may be bad at time management -- something he should improve on -- but that doesn't necessarily have anything to do with his feelings about you specifically. He still needs to hear your feelings about it and either improve in that aspect or at least help you understand what is going on.