Episode 116 of "Will and Grace"
s05e18 Fagmalion Part Four: The Guy Who Loved Me

While Jack and Barry have their first date, Will interrupts to confess that he has feelings for Barry. Then Jack and Will give Barry an ultimatum: he must choose which one he would like to date. The decision is made - Will. At her hotel, Karen mocks Rosario by putting on a maid's apron. She is then mistaken for an actual maid by a very handsome maintenance man who has a disliking for the rich. In order to be near him, she and Rosario switch roles. After a week of perfect dates, Will tells Barry that he wants their relationship to be exclusive. However, Barry claims that he needs to play the field more and see what's out there before he settles down.