Then I did the Forsworn Conspiracy quest. When I got out of Cidhna Mine, he was standing on the sidewalk in front of Ogmund's house, and he refuses to move from that spot. I ask him to follow me, he says "Sure!" and he stays put. Even if I fast-travel or go through doors, he doesn't follow. So I tell him I want to move into his place. He says "Okay, whatever you want!" and still he stands there.
I tried disabling and enabling him again. Nope, he's glued to that spot on the sidewalk. So I leave Markarth, and head to Riften to take care of some stuff. When I come back to Markarth, this time he's standing in front of the Silver-Blood Inn, similarly amiable yet immobile. I asked him to follow me again, went into the inn. He didn't follow. I walked out of the inn again, and he's missing. Sigh. ~player.moveto... Now he's on the sidewalk at the back of the inn, above the entrance to the Warrens. He still won't move. Well, I can herd him a bit -- if I stand really close to him, after a couple seconds he takes 3 steps and then stops again.
Bah. Men.
(Yes, I'm reloading the save from before I did the quest. Stupid Forsworn, ruining my marriage...)

