Party 3/6-How did I play this?

[Mattafuga]

I wouldn't have 3 bet the flop. Yes, best case scenario you have 16 outs, but the flush can't be counted for its full 9 outs when drawing to the 2nd nut flush, and if he has that ace, you lose an out on your gutter, leaving you with 6 outs, but probably not even that from the strength he's showing.

I don't think its a strong enough draw to 3 bet it, but the turn and river were played correctly IMO.