In 2010, Hiddleston was rumored to be dating Thor costar Kat Dennings and her hilarious self. Seriously, this was one couple I rooted for. Of course, there was no official word about their relationship, but they were hand-in-hand at Comic Con and at a few other events, but they broke up in 2011 before the movie was released. Hand-in-hand, you guys. If we were in second grade, that would practically be marriage right there.