omg. i just read this. get rid of the T and dont feel bad. she is horrible.
one year you have been working with her and she treats you like that?
are you kidding me?

its not like you were out partying and forgot or completely never called. omg.

she is mean and uncaring. forget her.

especially since she forgot a session with you.

send her the $50 and write her a letter stating her unprofessionalism and things that she did wrong. a closure letter. then move on.

horrible.