Wait, what? You're going to marry the ghost? How does that help in any way? The ghost’s issue is the ring, not wanting to marry someone. And we just went over that the ghost can be problematic in relationships. But you're dead set on this course, so you are going to marry the ghost. On spending more time with the ghost, you do learn that you have quite a bit in common, like for instance you both have a particular life force, and... and well that's it, actually. However, despite your differences, you do, in fact, hit it off and a romance slowly blooms. An appropriate period of courtship later, you get married here in the cave and, in a nice sign of reconciliation, the goblin acts as your officiant.