I read that several doctors have said that her situation can be improved with therapy and rehabilition. However, her husband keeps refusing it, even when they outright recommended specific rehabilitation centers for her, early on.

Does anyone know why he doesn't want this?

I don't know, I don't trust him. One of his ex-girlfriends testified against him, but then stopped testifying because she was scared of him. He won't sign over the guardianship to her parents-- if he wants to move on with his life, he's welcome to, but he's not doing it. At one point, he forbade Terri's brother and sister from visiting her. What's the deal with this guy? He's not just some poor soul who basically lost his wife and is trying to move on. There seems to be a LOT more to it than that.