Agreeing to go with him triggers a cutscene near a lake, in which Cullen will tell the Inquisitor about his past and present them with a small token. Pursuing a relationship with Cullen is ...

My money is on the Inquisitor being a major home base NPC like Cullen or Leliana in Inquisition, and I gotta say I love that they're rocking a variation of the same awful grey jim jams they wore ...