You Won’t Believe these 17 Hollywood Love Triangles

8. Louise Treadwell, Spencer Tracy, and Katherine Hepburn

Perhaps the most infamous love triangle in Hollywood history. Louise Treadwell and Spencer Tracy were married for 40 years in an unprecedented Hollywood marriage. However, when Louise died, it was revealed that Spencer Tracy and Katherine Hepburn had been having an affair for 26 years. Spencer said he wanted to avoid humiliating his children over the affair so he kept it secret. Both Spencer and Katherine attended Louise’s funeral.