KK hu how was this played?

[Hendricks433]

PokerStars No-Limit Hold'em Tourney, Big Blind is t400 (2 handed) converter

Hero (t7468)
BB (t6032)

Preflop: Hero is Button with K[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/club.gif[/img].
Hero calls t200, BB checks.

Flop: (t625) J[img]/images/graemlins/spade.gif[/img], T[img]/images/graemlins/club.gif[/img], 7[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">BB bets t400</font>, Hero calls t400.

Turn: (t1425) 2[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">BB bets t400</font>, <font color="#CC3333">Hero raises to t1600</font>, BB calls t1200.

River: (t4625) 7[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>

Final Pot: t4625
it didnt go through the converter but he pushed instantly after the river.

How would you have played this? No way Im folding either right?