25nl: KK in the blinds

[PJo336]

Villian is a 2+2 tag. very aggro but im playing fairly nitty and im pretty positive he uses a HUD so the 3bet call surprised me.

Full Tilt Poker - No Limit Hold'em Cash Game - $0.10/$0.25 Blinds - 5 Players - (LegoPoker Hand History Converter)

Hero (SB): $24.15
BB: $41.45
UTG: $49.00
CO: $11.30
BTN: $26.45

Preflop: Hero is dealt K[img]/images/graemlins/heart.gif[/img] K[img]/images/graemlins/club.gif[/img] (5 Players)
2 folds, <font color="red">BTN raises to $1.00</font>, <font color="red">Hero raises to $3.25</font>, BB folds, BTN calls $2.25

Flop: ($6.75) Q[img]/images/graemlins/heart.gif[/img] 8[img]/images/graemlins/heart.gif[/img] A[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">Hero bets $5.00</font>, BTN calls $5.00

Turn: ($16.75) 3[img]/images/graemlins/club.gif[/img] (2 Players)
<font color="red">Hero Pukes?

The flop screams I have an ace, maybe with a heart maybe not, but what else could i put him on? and with those ranges what do i do here? c/f? all in?