A symptom exclusive to males in a workplace charged with high levels of testosterone. Essentially whatever few women present in the workplace become objects of fancy regardless of personality, beauty or behaviour.
In extreme cases, the male formulates reasons or excuses in his own mind pointing to 'proof' that said female actually fancies him.
This disorder is especially pertinent in workplaces with over a 70% presence of males.
Male Banker #1: I quite fancy Jenna, you know. Think she was checking me out from across the desk.
Male Banker #2: Mate, she was checking the time on the office clock right next to you. You need to get away from your work more often, you're beginning to develop Office Girl Syndrome.