I'm glad you decided to keep your appointment. If it's your agreement that she'll reply if you ask (and it doesn't sound like you asked her to reply) I can't see anything in this where she abandoned you. The text that you shared here takes effort to try to decipher, so if your Sunday text was in a similar vein, I can see why she would have seen it as venting without need for a reply.

I do think that a good therapist tries to give us what we ask for. We can't get upset if they follow protocol we've set up. Also, as you point out, there was some transferring of your relationship hurt. In a way, her non-response to your non-request has been a good experience?