In 1997, Phillippe met Witherspoon at her 21st birthday party, way before they co-starred in the 1999 movie "Cruel Intentions" together, even though many thought the two met on set.
During an episode of "Watch What Happens Live With Andy Cohen" in 2015, Witherspoon explained that she and Phillippe were "living together for about a year and a half" before filming "Cruel Intentions."
Phillippe and Witherspoon separated in 2006 and officially divorced in 2008, according to The List. They share two kids, Ava and Deacon.
Both Phillippe and Witherspoon agree that the main reason for them divorcing was simply that they were married too young.
"I think more of the problem was age. When we got together we were so young," Phillippe told Larry King in 2015. "I think it can create issues with two people in this industry because there's so much noise that goes along with it."
In 2017, Witherspoon had a similar answer regarding the end of their relationship. "I got married when I was 23 and I had two kids by the time I was 27," Witherspoon said, "So I don't know, you know, sometimes it's good to know yourself. I would never change anything. I've said to my daughter, I think, you know, [at] 25, you start to know yourself a little bit better."