Blind steal hand

[VORP]

Villian is a little more passive postflop than 2p2ers but is a thinking winning player. I open Js8s on the button, sb 3bets (range is something like 55+, A9+, maybe looser)

Flop (7sb): Ah 8c 3s
He bets, I call

Turn (4.5bb): 7d
He bets, I call.

River (6.5bb): As
He bets, I fold.

Here’s my thinking behind calling the turn and not the river. On the turn it’s possible that he’s firing again with a small pair or KQ plus I have outs so I think it’s an easy call with my pair. After calling on such a drawless board Villian pretty much has to know that I have a pair, which means that he is only betting the river as a value bet. I can beat a few hands, but not enough to call.