He crit failed his will save or opposed diplomacy or whatever it is, so he's pretty much okay with this. Still, he feels like it's only fair to warn her. "This isn't some pleasant little jaunt. It could take months, and all this finery?" He plucks at her nightdress. "No room for it. It'll be hard and painful and there's a good chance neither of us will survive it. We are going up against the Dark One."