Air < Air

Lost a leveling war vs. a decent reg. Young guy and aggro, obviously competent.
I straddled, 2 callers, he limps BTN, I have in BB and check. I start the hand with $310 and he has over $600.
Flop:
I check, 2 checks, he bets $10. I CR to $30, 2 folds, he thinks a bit and calls.

Turn:
I bet $40, he raises to $120. I really want to jam over but I give up. Really don't think he has anything but he can't fold any real hand he has here. Later he told me he had J9o and just didn't see what I could have, I told him I had 72. I eventually told him the truth.