Why Oh why?: Or Lost My Nerve

[yenforyen]

First time playing B&M 6/12. (I’ve been winning 1.4BB/hr at 3/6 for two months and decided to try moving up. The next level at my club is 6/12.) Table seems fairly tight with solid players. Maybe a couple of looser young guys in shades but no one drawing attention to himself. I win a pot pretty quickly with pocket Js and relax a little. Then, I’m dealt black Qs on the button and I cap it with four other players. The flop comes JJx and I cap it again with three other players. A very talkative Asian guy in UTG+1 has got my attention. He sat down one orbit before this hand. He’s often shouts out the card he wants, tells others what his hand is, urging them to bet or not, but from what I’ve seen so far he seems like a pretty good player. I’m guessing he has a J.

The turn is a K and I half decide that I need to represent pocket Ks while worrying that someone may already have pocket Ks. Here’s where I blow it. The Asian guy bets, MP1 raises, MP2 calls and I call. What? There’s lots of rumbling around the table. The Asian guy says "You don’t cap, I win," which pretty much sums it up. I knew the moment I didn’t raise that I’d screwed up. I even had a chance to redeem myself when the turn was an ace, but was already in a fog and folded. The Asian guy had KJ and he probably wouldn’t have folded with a full house. Or would he? I’ll never know, will I?

My question is why did I not raise? I don’t think I’d have done this at my usual level. I’m kind of surprised I did this because I think I’m naturally tight/aggressive but lost my nerve at a crucial moment. Comments?