Short stacked QQ hand

Since I've just moved up to 50NL, I've been buying in short, but here, I actually think it commits me. Reads for this villin are that, for the previous 40 hands or so, there was colassal fish at the table, who had somehow accumulated over $150 in chips. This fish would call with anything and everything raising 32s UTG and raising with bottom pair. Accordingly, the rest of us had not really played each other yet, and while I noticed people were calling him down with 3rd pair, good kicker, I was not sure if that was because they were equally fishy or they were playing off him. The villian in this case was the worst and I suspected he might be nearly as bad, and had just found someone even fishier than himself. In any event, he could easily be on almost any hand involving paint or a potential draw. I have seen him fold when it is really really obvious he is beat, but otherwise, I'm not sure there is any fold equity with this guy. What's the line?

PokerStars No-Limit Hold'em, $0.50 BB (6 handed) converter

saw flop|<font color="#C00000">saw showdown</font>

MP ($17.50)
CO ($96.20)
<font color="#C00000">Button ($60.30)</font>
<font color="#C00000">Hero ($29.80)</font>
BB ($29.40)
UTG ($19.80)

Preflop: Hero is SB with Q[img]/images/graemlins/heart.gif[/img], Q[img]/images/graemlins/club.gif[/img].
<font color="#666666">3 folds</font>, <font color="#CC3333">Button raises to $1</font>, <font color="#CC3333">Hero raises to $3.5</font>, <font color="#666666">1 fold</font>, Button calls $2.50.

Flop: ($7.50) 5[img]/images/graemlins/heart.gif[/img], 6[img]/images/graemlins/spade.gif[/img], 7[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $7</font>, Button calls $7.

Turn: ($21.50) K[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>

HERO ???