[$hort$tacked]

Checking when WA/WB is not good. You need to find out where your hand is ASAP and if you are c/r'd on the turn you can safely fold. He sees your actions as raise, c-bet, check(showing weakness), and he thinks he can take the pot from you on the river. Perhaps he hit a hand and was going for a c/r on the turn, but I think he could be betting out anything including trip Q's, pair of jacks, 99+, or even air. I think you are ahead of that range and need to call. In the future though I wouldn't give him a chance to shove a lot of money in like that and force you to make the tough decision.