Ok. First, lets back up to the flop. He limped in early position and then called a raise from the BB. I don't know about this player but I would put him on two broadway cards or a pocket pair. After seeing the flop, I'm ruling against a pair of jacks but he could have a hand like AJ, KJ, or QJ. KJ or QJ makes some sense from the situation. He opens up a pot by limps and check calls. I would consider him a loose/passive player at this point. I don't necessarily like your bet on the flop because any caller is probably ahead of you and if not ahead, they're on adraw with two overs most likely and you're still a coin flip. After the 3 comes, he could've easily had a pair of Jacks with the flush draw and I would probably raise there too seeing that I probably just picked up about 9 additional outs. On the river, he pushes and I couldn't imagine pushing all-in on the river. There's no value in that (unless you've seen him do this before). I would call him and put him on KJ or QJ.