In case you haven't joined the #Tayvin train yet, it has now approached the station and is ready for you to jump on board.

After their Instagram declarations of love, being utterly adorable at awards shows, and supporting each other on Twitter, it was pretty certain that their relationship couldn't get anymore damn cute.

BUT WE WERE WRONG. We were very wrong.

"It's going absolutely fantastic," Calvin told KISS FM, as we cried a river of tears.