She Knew. Oh, She Knew
This lady made a terrible first impression when she made her BF’s mother for the first time. Well, it wasn’t exactly her first time meeting the woman. She was apparently one of her bosses where she worked, so anything the OP did in and out of the office would definitely go into her evaluation. Sucks to be you.
Anyway, the lovely mother popped into her son’s apartment out of nowhere. Meanwhile, the OP had nothing to wear except for her BF’s clothes that she tried to pass off as a dress. Nice try, but nobody’s falling for those elementary-grade excuses.