The young Shameless couple has been dating since Greenwell replaced Jane Levy as Mandy Milkovich.
By all accounts (*cough* Wikipedia) the Shameless costars are dating, but my Spidey senses (*cough* Instagram) tell me that the two have appeared to be a lot less social media couple-y in the last year or so. Dated: 2010-2012Married: 2012-present Gossip Girl's Blake Lively met her Green Lantern costar, Ryan Reynolds and married him two years later.
As it turns out, their intense chemistry was more than just acting.
These two whippersnappers also fell in love off set and dated for four years.
Dated: 2012-2013Fans of [Game of Thrones](movie:817617) everywhere will be happy to know that while Jon Snow may have known nothing in the show, he knew enough to date the gorgeous Rose Leslie.
While it didn't work out for the couple both on and off the show, they'll always have that steamy cave scene!
Considering they dated for so long, I'm pretty surprised that I didn't already know about this.
Dated: 2007-2010Married: 2010-present The two True Blood stars met on set and it must have been love at first bite!Dated: 2012-2013Married: 2014- present Alexis, girl, do you ever meet any guys outside of filming?Well, I guess it doesn't matter now since she has found true love in her [Mad Men](series:200778) costar Vincent Kartheiser.Dated: 2001-2007The pair played Lindsay Weir and Nick Andopolis on Judd Apatow's far too short-lived show Freaks and Geeks.While their relationship may not have ended particularly well on the show, these two dated for six years!Like Alexis Bledel and Blake Lively, Jennifer Garner must have a thing for her costars.