[jcm4ccc]

I don't believe the button is bluffing. You've been LAG, and most people will not try to bluff out a LAG (a LAG looks like he will call everything, even if it's not true).

The button is convinced that he has the best hand. This is either because a) he has a great hand (AQ, KK, AA), or b) he hit middle pair and thinks because of your LAG image and the fact that you are in the BB that you have nothing.

So what does the button have? Well, his raise on the button is only 2.5XBB, so I don't think he was too afraid that you would call. You also said he was a tight player. So it's not KTo. It might be AJ, which is about the best you can hope for, I think. Or perhaps AK, if he's a pretty bad player.

I'm guessing AQ. I'm also thinking you should fold this thing. You've been running the table over and have picked good spots to build up your chips. This is not one of those spots, in my opinion.

Also, I wouldn't have raised quite so much on the flop.