AA on a 3 flush, what's my turn action? (2/4 PP)

[Sirasoni]

Villain is somewhat unknown as far as stats on 2/4, but from previous experience with him on previous stakes, for the most part he is semi-loose and aggressive. He plays postflop well, and despite his looseness, is not a person that goes out of line (aka he knows when to fold).

Party Poker 2/4 Hold'em (10 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

Preflop: Hero is SB with A[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/club.gif[/img]. UTG posts a blind of $2.
<font color="#666666">4 folds</font>, <font color="#CC3333">MP3 raises</font>, <font color="#666666">2 folds</font>, <font color="#CC3333">Hero 3-bets</font>, <font color="#666666">1 fold</font>, MP3 calls.

Flop: (7 SB) Q[img]/images/graemlins/diamond.gif[/img], 9[img]/images/graemlins/diamond.gif[/img], J[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets</font>, <font color="#CC3333">MP3 raises</font>, <font color="#CC3333">Hero 3-bets</font>, <font color="#CC3333">MP3 caps</font>, Hero calls.

Turn: (7.50 BB) 2[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
Hero checks, <font color="#CC3333">MP3 bets</font>, Hero...

What do you put him on after the flop cap? What's my plan of action on the turn? I know I cannot raise for a free showdown (if I wanted one), and seeing a 3-bet here would be very upsetting. If you put him on the flush draw, what types of hand combinations could he realistically be playing here? Considering that the Ad, Qd, and Jd are already accounted for.

Additionally, what is our plan of action on the river if:
A. A non-diamond falls
B. An ace falls
C. Q or J falls

What do you think he puts us on after a 3-bet preflop and flop? Does that affect how he plays his own hand?