Best to just ignore that shit; itโs just female intrasexual competition at work. Yes, itโs mostly unconscious (she does feel genuinely affronted), but thatโs thatโs still what it is. There are many women who do wish to self-infantilize, though. No idea why. Easier than taking any form of responsibility or being held accountable, I guess.
Good gig if you can get it. Men canโt.