The opp limp called in mp and this is 10NL - I highly doubt he is considering the value in dobule barrelling this turn card with AK AQ with added equity.

I still think double barelling on this drawy coordinated board that smacks limp callers in the face is bad regardless of whether you've picked up a flush draw sicne he never folds turn. We'd be better c/f this turn with AK/AQ and hoping for a free card because his range crushes us fd or no fd.

Also over pairs certainly don't have to bet the river mainly because theres no value left here. He either has a missed draw or has us beat the vast majority of the time. I don't mind a c/c or c/f - betting river would be bad unless we know hes a rediculous station that cant fold anything ever. Again though villain probably doesn't think along these line either.

You're decision to call is based upon what you would think if you were the villain and not what the bet actually means. Having said that, calling may be alright here if he's bluffy but not for the reasons you've specified. I fold because I play 20NL and from experience you're not normally good in this spot vs this type of passive player.