She was married for 20 years and didn't even know.
According to her IMDb page:
Garofalo married Robert Cohen, who was then a writer for The Ben Stiller Show, in Las Vegas in 1991. She later explained that it was intended to be a joke, the pair thinking that the marriage was not binding unless it had been filed at a local courthouse. It was discovered later, when Cohen tried to marry someone else, that the marriage was indeed legal. The union was dissolved in 2012.share