Kaley Cuoco
Cuoco is a household name after her star turn as Penny in The Big Bang Theory. She famously dated her co-star Johnny Galecki but it didn’t work out. But she also has a history of dating athletes and even married two. But these relationships didn’t go well and she divorced both of her partners.

First, there was the former PGA Tour star Ryan Sweeting. They spontaneously married after three months but this went as smoothly as most people expected. Cuoco also loves horseriding and managed to snag top equestrian Karl Cook. But they also divorced, so perhaps she just likes wedding cake (via Women’s Health).