Weak hand, bet river?

[teajay]

MP2 is 36/14/3.6
UTG is 22/0/0.64 only 40 hands

MP2 raising a lot of hands and looks aggressive I figured I would call his flop bet and re-evaluate the turn. Does anyone think 3rd button w/ BD baby flush draw is a weak call for this flop?

Since he checked behind on the turn I figured over cards are most likely. I was now planning on betting a safe river card. Of course, this card brings 4 to a straight down and an overcard, which may have hit him. This got me thinking, which would be better, check/call, check/fold, bet/fold?

Paradise Poker 1/2 Hold'em (10 handed) FTR converter on zerodivide.cx

Preflop: Hero is BB with 4[img]/images/graemlins/spade.gif[/img], 4[img]/images/graemlins/heart.gif[/img]. CO posts a blind of $1.
UTG calls, <font color="#666666">3 folds</font>, <font color="#CC3333">MP2 raises</font>, MP3 calls, <font color="#666666">3 folds</font>, Hero calls, UTG calls.

Flop: (9.50 SB) 3[img]/images/graemlins/diamond.gif[/img], T[img]/images/graemlins/spade.gif[/img], 9[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(4 players)</font>
Hero checks, UTG checks, <font color="#CC3333">MP2 bets</font>, MP3 folds, Hero calls, UTG folds.

Turn: (5.75 BB) 8[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, MP2 checks.

River: (5.75 BB) Q[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
Hero ??