He might of just been trying to buy it on the flop and as soon as you called he was finished with the hand.

I can't see him calling your bet on the river without an ace - the way the hand has been played it looks like you had a pair of aces (AK AJ) - You raise preflop bet out on the flop to see if your aces are beat by anyone with a Q - shark raises to say he has a Q and u call - then you check he checks - then another A comes out and you go allin.

I had a similar hand last week I raised with AQ got three callers board came out AQQ - I thought the only way i was going to get payed off was if someone had the queen (KQ) - so i bet the pot and one player raised me - I moved all in and he called with the KQ.