[jskills]

Fold preflop - you're going to get raised and have your odds for this kind of hand destroyed.

Fold the flop. With a preflop raiser, a king on the board, and the Big blind calling (so he's got some part of the flop too) there's a really good chance you're drawing to 2 outs. There is no reason to call here.

On the turn you hit your 2-outer and raised. Did you plan to fold here if you didn't?

On the river, looks like the BB made 2 pair with A5 or something and maybe CO has AK and that would account for the raise. Regardless, why would you not raise here? What hands are you concerned about (AA and KK)? I'm sure CO, given his stats, would have 3-bet the turn with either of those hands.