Hayes Hargrove (2005 - 2009) (divorced)
Wikipedia says, "She was once married to actor Hayes Hargrove."
It took awhile for her divorce to go through, and by that time she was already dating her friend of 21 years, Brian Petsos.
In one interview with Kristen...
Her brief marriage to another actor, Hayes Hargrove, was the topic Ms. Wiig was most squeamish about. But in general she was self-effacing. “Does anyone really care what I have to say?” she said.
Not exactly news, but still.