No the photo shoot is a homage to/knockoff of a scene in Bonnie and Clyde: http://www.hypable.com/famous-movie-scenes-recreated-benedict-cumberbatch-tom-hiddleston/ They weren't married in the film or in real life.

I see it as a holiday romance - they can be genuinely intense while you're on holiday together, but once you're home again, what? Texting and keeping in touch, maybe seeing each other a few months later to see if you still like each other. Seems to me be reasonably akin to what happened here.

Hey and next week they announce the burrito baby and we are both wrong ;)