[thejerkface]

I'd lead for more than 2/3 pot on the flop, because of the the flop texture, something like ~$100.

I'd c/c turn and fold to any river aggression. You said he's passive, so I can't see him value betting anything worse, or 3-barrelling with air or a missed draw (QJ).

As played, I fold river. You really only beat QJ, and I think a lot of players pitch that on the turn. Also, his bet sizing seems like a value bet.