scared like a schoolgirl w/ ak

[HamJam]

$3+.3 rebuy. 1st level of second hour. MP is very unlikely to have been slowplaying AA, KK, or JJ. 22 maybe. He is pretty loose however and a weak king is a possibility. BB is a little tighter but too straightforward to have aa or kk. AK maybe. He called the push immediately if that matters.

PokerStars No-Limit Hold'em Tourney, Big Blind is t150 (9 handed) FTR converter on zerodivide.cx

BB (t6500)
UTG (t1725)
Hero (t6970)
MP1 (t8485)
MP2 (t5200)
MP3 (t12555)
CO (t8985)
Button (t8050)
SB (t5985)

Preflop: Hero is UTG+1 with A[img]/images/graemlins/club.gif[/img], K[img]/images/graemlins/spade.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to t450</font>, MP1 calls t450, <font color="#666666">5 folds</font>, BB calls t300.

Flop: (t1425) 2[img]/images/graemlins/club.gif[/img], K[img]/images/graemlins/club.gif[/img], J[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
BB bets 150, Hero raises 1050 to 1200, MP1 raises 6835 to 8035 (all-in), BB calls 5900 (all-in), Hero folds.

How bad is it? When I fold I still have ~5300, I call and win I think I have 20k but I just didn't see myself ahead here.