You can add Kaley Cuoco's marriage to the list of relationship casualties.

The Big Bang Theory star and her husband of 21 months, Ryan Sweeting, called it quits over the weekend.

Her representative did not offer a reason for the divorce filing, saying only that it was a mutual decision before predictably asking for privacy.

Around the time the statement was released, Kaley removed all pictures of Ryan from her Instagram (that's big!), and later posted a photo of a dog with the caption, "#mood."

Earlier this year, Cuoco denied rumors that their marriage was in trouble. "All of you who take it upon yourselves to trash our marriage, daily workings of our relationship and everything in between, go ahead and keep doing it, cause it only makes us stronger," she wrote on Instagram in April.

Cuoco, 29, and Sweeting, 28, married on New Year's Eve in 2013, several months after they started dating. News of their split came almost two years to the day Ryan proposed to Kaley.