Laura Prepon was dating Christopher Masterson, who played the oldest brother, Francis, in Malcolm in the Middle.
He is also the elder brother of Danny Masterson, Prepon’s That ‘70s Show co-star. She later dated former Greek star, Scott Michael Foster.
They are believed to have started dating in February 2012 and Robin first showed off her engagement ring in January 2014. She said: "I’ve never been happier in my life than I am today.
She said: "Ben and I have a connection between us that just feels right. Perhaps it’s not ladylike [to say], but I’ve never laughed more, read more, or come more than with Ben.
They kept their relationship low-key, even though there were constant speculations about it.
Prepon also kept her relationship out of social media.
Prepon was last romantically linked to Christopher Masterson, whom she split with in 2007.A source later confirmed the actors are indeed planning to wed.Prepon modeled a Nha Khanh dress, LK Bennett heels and carried an Inge Christopher clutch at the event.Things have heated up very quickly for Laura Prepon and Ben Foster.The actors announced their engagement after dating for a few months, and about a year after Foster ended his previous engagement to actress Robin Wright. If you didn't even know that Prepon and Foster were dating, you're not alone.
He appeared on the television series That '70s Show, which featured Topher Grace.