The last time she attended a trial, she had a different alignment, species, and strategy. A Cassisian Angel has a perfect memory. When she became a Cantor Marrenai, she needed all of her new Wisdom to bear the loss, and her new Intelligence to rederive her thoughts. If she had had subordinates at the time, her vast increase in Splendor would have served well to hide her grief, but she was alone with her superior, a fragment of Marra Herself, and hid nothing, so that she could be shaped efficiently and begin work soon.
She does not grieve now, for the so-called friends she can't remember. She has visited Heaven since her fall, and it was a disappointment.