Hmm...you are really making me think too hard on my 2 hours of sleep LOL
Honeslty, I can't really tell you from all this what he might have had...I mean if he has been playing freely with hands like J 3, and then shoving when he hits, then judging by a mere 1,000 bet in this hand, it's not likely he had much of anything...I'm still thinking AJ at best.
Hell, players like that will bet with AK having made no hand, thinking it's invincible...so I really just don't know in this case.
Wouldn't it be funny if you both had QJ? LOL I was thinking about that earlier, but didn't find it very likely...