Stay tough, kill her with kindness? and I’m sure your boss is already know this is going on maybe put your phone on record when she’s doing it just hit record quickly. Have your phone ready and record how she’s acting towards you.

Today is my daughters birthday too. Happy Birthday from someone who cares! ❤️ I am so sorry for your situation, and I don't pretend to know your situation and all I know is sometimes people weather family or friends just don't seem to muster up and excuse my "text" here F-Up and we need to step back from them for the moment. SO I am praying for you to have wisdom and heartfelt strength for this frame of time in your life and pray things will turn around.
And Happy Birthday from someone that cares! ❤️

May your son be strong and courageous and not fear or be in dread, for it is You, Lord, our God, who goes with him. You will never leave him or forsake him (Deuteronomy 31:6).