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The Biggest Celebrity Breakups And Hookups Of 2021

9. Breakup: Kaley Cuoco And Karl Cook
This split comes as a surprise considering as recently as June the two were celebrating their three year wedding anniversary publicly.

"Despite a deep love and respect for one another, we have realized that our current paths have taken us in opposite directions," they shared jointly with People, "We have both shared so much of our journey publicly so while we would prefer to keep this aspect of our personal life private, we wanted to be forthcoming in our truth together. There is no anger or animosity, quite the contrary. We have made this decision together through an immense amount of respect and consideration for one another and request that you do the same in understanding that we will not be sharing any additional details or commenting further."

Interestingly, the couple didn't live together till last spring. This was Kaley's second marriage, her first to professional tennis player Ryan Sweeting who she said completely changed once they were married.