PP 15/30 88, looking for opinions

[PinkyRingo]

Sorry, I'm at work and don't have the actual HH.

First orbit at the table, no real info on players. Raise from MP. Folded to me in CO-1 and I 3-bet with 88. Feel free to comment on this isolation raise (good/bad/who cares?). CO calls 3 cold. Folded back to MP who calls.

Flop: Jd 8c 2c

MP checks. I bet. CO calls. MP folds.

Turn: 5s

I bet. CO raises. I 3-bet. CO caps.

River: 9h

What's my best course of action?