Celebrity Love Triangles That Prove Three Really Is A Crowd

Mary-Louise Parker, Billy Crudup, and Claire Danes

Billy Crudup and Mary-Louise Parker had been together for about eight years when Parker became pregnant with their first child. Unfortunately, two months before Mary-Louise had the baby, Billy left her for his co-star Claire Danes.

Claire and Billy had been filming Stage Beauty when they fell in love. In 2004, the pair split, which was rumored to be the result of Claire leaving him for her Evening co-star Hugh Dancy.