How childish. Your T is acting like a jilted lover or friend, not at all like a decent, competent, professional.

It is not you who is or needs to feel worthless, your T is the one who is not good enough. Cancelling on you, not communicating with you, leaving you dangling... behaving like a spoilt brat. These are *not* acceptable.

He needs a reality check. Therapists, at least ethical ones, don't behave like that.

I see his behaviour as major red flags.