Beat: Folded Winner In Decent Pot B&M

[beset]

Playing 12/24 LHE. I am tired after having a crappy day.

Semi-LAG who I've played with a lot opens in MP and I 3-bet in the CO with AJc. Flop comes J T 6 with two diamonds. She checks I bet she raises I call. Flop is a non-diamond blank. She bets, I raise she 3-bets I call. River is a J (non-diamond). She angrily checks and I bet she calls and turns over TT and I say "nh" and muck.

As the pot is being pushed her way, I notice that the turn "blank" was a 6.

I cash out.