Is this a 3 bet?

[gobbledygeek]

Wow, am I totally off base here? Button could easily have a zillion hands that will call our three bet (a set, two pairs, top pair, etc.) and yet he slowed down on the turn due to being scared of someone having a flush. I didn't even think 3betting was debatable? I guess my 5bet would be super spewy but I'm not convinced yet of that...

ETA: The number of times I've personally seen someone not bet the turn with a flush (even a baby one) when everyone has checked to them at my 2/4 B&M table: 0.

GsuperspewyG