It's no secret that HGTV loves to celebrate love. On almost every series that the network puts out, the lovely couples share their lives with the viewers, with glimpses of their relationships. While some couples have not stood the test of "til death do us part," like Flip or Flop's Tarek El Moussa and Christina Haack, viewers have watched them mend their relationship over time, as seen on The Flip Off. But when it comes to the networks' "it" couple, look no further than Ben and Erin Napier.