"Young Lady" would have infuriated me even when I was young and it would not matter who said it to me.(I am not criticizing Healed. I had a bad reaction to just reading those words - sort of amuses me how much that phrase would set me off)

I do not believe the therapist has earned the right to use a nickname or endearment to me. She does not get that privilege as it is not the position she is in to me.