We didn't get three bet on the turn, we didn't learn much about villian here. I think he has lesser King's and 10s all day to target for value.
I think a check here is so weak. It's possible he lead the turn with diamonds and got there. It's possible he turned a two into a bluff and got there.
I think betting the river makes money.
My first thought was to check back and see where my hand stood, but I my thinking then went in this direction.
Hero bets $11.50.
BB snap calls. Turns over .
I immediately knew this was a hand to learn from. Admittedly, I'm still getting back into poker after not playing for years, and just recently started actively trying to improve my game through books/online courses and tracking my sessions. I wouldn't pretend to be a good player by any stretch. It can make one feel vulnerable to put out hands like this to the wider community, exposing oneself and one's ability, but this has been a helpful process and I appreciate the responses.
Ultimately, betting the flop likely wins me this pot, but the decision to bet the river is what really cost me in the end. Checking that loses me $7.05 instead of $18.55.
I still have lots to learn, and look forward to the journey. Thanks for the input everyone, and please do add any additional thoughts!