I think you start by making sure you like yourself. Really, really try to move the focus off of him, and onto you. Besides, which one of you can you control?
As far asking asking for transparency, I can see why you might be wary of doing that just now. Waiting to see what the MC has to say makes lot of sense to me.
Try not to take his inability to make the appointment personally, especially not the first time. Believe me, I know exactly how you feel on that one! For now, assume the best, and give him another chance!
