I put him on a drawing hand in hand 5, because I figure (and I've been wrong before) that anything else has to 3-bet such a wet board. Something like a KJ, two diamonds, something like that. Maybe even a JT.

Hand 1 the 3-bet was basically a bluff. One part of my "passive" game was I stopped 3-betting almost entirely. Thats one reason I took a passive line on the flop, I'm not playing my weak TPTK as a big hand.