villain is a pretty aggro reg with AF of 3.8 running 24/21 with 9.5% 3bet 

c-bet is 66/61.  r-cbet is lack of sample but 71% in 7 opportunities 

Has seen villain double barrel with complete air(while he had a gutter) both vs regs and fishes in position Which I assume he does give on the river usually.

Pre I chose to flat because A) we are about 140bb deep, getting Qs vs btn isn't that great.

b) although his btn 3bet is high,  his 3bet vs MP open is only about 4%.   

Pre he made it pretty small, which I think he usually makes it 18.  and BB is a aggro reg who likes to click.  

Flop is a standard call.  Turn he made it pretty big which usually means his polarized with draws and AA/KK sometime AK/AQ.

I tanked a little before calling, at this point, I think my range is pretty strong, assume I will flat all pairs pre, and 4b KK/AA, occasional QQ, my pair that gets to the river are 3 combos of 8s and 9s and TT. and 4combos of JJ and QQ.  

with regarded to draws, probably all the suited broadway spade draws, (would be a bit too optimistic to float with bd diamonds unless it's AJdd+  

With his range, I figured since his btn vs MP open is quite low, he shouldn't really have those pairs in his 3bet range that often, occasionally A2s.   

thoughts?