That sounds really hard. I remember I went through a time where my therapist (a psychiatrist) would often miss our appointments because he scheduled me after court hearings and the court hearings would often run over. It was understandable that he missed our session (the judge held him up) but that didn't really detract or help me with respect to the rollercoaster of feelings that I'd go through every time he did that.

It can be hard... In a sense it is understandable - they have good reason. But then in a sense it is not fair, not good enough - and that is understandable too, we have good reason. A hard situation.

Can you talk (rather than confront) with your therapist about this? Maybe... Focus on how you feel when a session is missed?