Is this with the same therapist? If so, I would speak to her.

I understand things happen and the need for clients to be flexible but your T seems to be changing your time quite a lot.

Also, it bothers me that she pulled you up (cf. your first round of therapy) because you couldn't keep a set time. How is that indicative of you not being committed? You seemed to have a valid reason and Ts ought to be flexible as much as possible. Yet, she dismissed your reasons because she 'liked' clients to keep the same time?! Her judgment seemed rather harsh and frankly, out of place here.

I would definitely discuss with her.