I only had 36 hands on the player on the button. He opened 3/3 buttons when he was first to act. He was playing 33/19 over the small sample. I assumed he was a reg due to having a full stack and min opening the btn.

I x/r here as it's a dry board and people at 25nl fold wayyyy too much to x/r in general. I also have a couple of back door draws.

In my plan of check/raising the flop this turn is quite good for me.

This is where it becomes tricky. I miss my flush outs on the river, so do I bet here? I obviously have 0 showdown value here but does he always just have a set or AQ? In my mind at the time he can have a decent amount of QX (QT+) and small/middle pocket pairs.

I also am aware that I don't rep anything but a set as in his eyes, if he's a thinking player, I'm 3betting AQ, QQ and AA pre close to 100%. So that only leaves me with 33 and 22, as I can't see myself x/r 44 on the flop with close to 0 equity.