My T has given away the time that I typically have my appointment with her. It's an honest, human mistake.
I know it feels hurtful - like - we've done this forever, how can you FORGET ME? I didn't take it as just accidently filling a slot, I took it as FORGETTING ME.
I've grown a lot though, and just had to learn that she's human. No matter how much I keep expecting her to tear her shirt and reveal a superhuman logo to me.