[Kh] in CO.

Opponent has been very aggressive preflop through the first few orbits. At the time, his #'s were something like 30/20 but 0 WTSD through like 30 hands. Not enough to get a full read, but it's all I had. He has $53.40 and I cover.

UTG limps, MP2 raises to $2, I re-raise to $7.25, blinds and UTG fold, MP2 calls $7.25

[4h][3c] Pot $15.75
MP2 checks, I bet $12, he calls

Pot $39.75
MP2 checks, I check

Pot $39.75
MP2 bets $20

WTF do I do now? Set, straight, flush, bluff? What would he call a re-raise with preflop? I have no idea. Also possible he's slowplaying Aces on me to the river. That has happened frequently to me this week.

I think you'll have the best enough to call here. I mean 3:1 with tptk...If he plays aces like that make a note.

I would put him on AA KK or AK at this point. WTF can he be putting you on when the K hit. I'm thinking now very likely KK and was afraid you had AA, reason for the check/ call check.

In my NL rookie opinion, Nothing in the hand tells me that you are behind.

I think that I would call and expect to win, Unless he just hit trips with that K.

Sure, but if I check the turn there, what would be my most likely hand. AK, right? Wouldn't he think that there's a good possibility that the K helped me?

Anyway, I folded. No idea what he had.

Looks like Trips to me.
Otherwise he would have folded/raised the flop.

Just my 2 cents

he seems like a decent player and your hand looks like AK.
What you beat
It might be a split or a blocking bet with QQ or worse.

What beats you:
AcQc got there.
You are right around where smaller PP's are able to call profitably preflop (I would) and he might have a set and was planning to checkraise the turn. It is very unlikely you bet that river, even with AK and he doesn't want to lose value.

I think you made the right fold.