What did my coworker mean when he said this (in the below details)? I know I should ask him but I need to know your thoughts please?

Anonymous

My coworker and I have been talking recently, and we are totally head over heels for each other, but not yet together. Then, one day we were talking about the man who actually hired me, so he asked me "who is the one who hired you?", so i told him the name. Then, he goes like "this is the biggest mistake he's ever done in his life".

What did my coworker mean when he said this (in the below details)? I know I should ask him but I need to know your thoughts please?
8 Opinion