Lessoned Learned

So I was playing in a 1-2 NL cash game tonight. I was BB and looked down at AKs (hearts). Some guy in middle position raises to $15. There are 2 callers. I call.

Flop
Ks - 7s - 4d

I bet $60.

The pre-flop raiser thinks for about 2 minutes and then raises me another $100 on top. One of the other callers quickly goes all in for $132.

Based on watching them play previously in the night I put the ALL IN guy on a flush draw or big King. I was certain I had him beat. The preflop raiser guy that bet $160 never bluffed all night that I saw. And generally didn't play junk.

Before I say what transpired....whatcha thinking at this point?

I had about $185 left in my stack and he had about $205