Fucking weird ending eh? I was half asleep so i don't even remember all of tommy lee jones ending dialogue, from what i do remember it was like the whole thing was a dream or something along those lines? He was going on about some dream where someone was always waiting for him or some shit.
You see the original or the redone English version? If you like Haneke's stuff, also try Benny's Video and Cache. Funny Games, i think is his best though.