£100 FO.
7 players at table, 2nd level (50/100).
Cutoff - loose, often chases draws, happy to gamble - get a big chip stack or go out early.
BB - unknown.
Button (me!) - no real action, 1 raise and continuation bet during first level.
All three players about 7500.
Cutoff limps, I raise to 400 with

, SB passes, BB calls.
Flop

.
BB & Cutoff check, I bet 800, both call.
Turn

, checked to me again, I bet 2200, both call.
River

, checked to me again, I check.
BB shows

, Cutoff mucks without showing(but saying had nut flush draw).
Thoughts on play and specifically did i miss a bet on river.
My rationale(for what its worth) that one player was likely to be on flush/straight draw but the other may have set or two pair (J9s?) and I was only getting called by hand beating me...but to be honest I perhaps should have realised that I would have got paid by the JK or JA to a small bet on river? but what if he then came over top of my small river bet? I couldnt call or could I?
Maybe a simple one, but interested in views....