$10 Home game, (easy) fold?

[kingofmirrors]

7 started, 4 remain, top 3 pay. I have been seriously shortstacked through most of it but have been picking up lots of blinds pushing preflop and then won a decent hand to get into second place. Blinds are 2/4 and the average stack is about $50, I'm up at about $60 and the chip leader is near $70.

I'm SB with Ad Jd, UTG and CO(chip leader, seems to be a pretty tight player) limp, I make it $12. Folds around to UTG who calls. Flop is As Jc Ts and I lead for $15. CO thinks for a bit and pushes. There's a good chance I'm beat here but if I fold I've just blown half my stack and with the blinds going up soon (3 min I think) I'd be in trouble, especially since people already know I've been stealing blinds. Thoughts? Thanks...