he has 7 combos of 2pair on the flop that might raise. these are the only ones you beat on the river. all the sets and flushes beat you. As he makes it sooo cheap on the turn i think a call is fine... otherwise you could think about letting it go there already.

if you have a read that he is superspewy, you could reraise on the flop.

Given the shorter stacks still to act I would raise bigger preflop and pot the flop versus such types, the money is going in on the turn anyway. When I get raised I'm all in and if they have K2 sooooted, for 40bb I'm not concerned and never folding - and I haz outs!

Yep this is a clear GII on the flop for those stacks! If he has you beat then good luck to him you have the nut one pair hand against a fish with less than half a stack!

Pre: Standard.

Flop: Why are we not getting it in here on this flop? We have a short stacking fish showing interest and we have TPTK, trivial get in spot for me.

Turn: As played, again I just raise GII here. Obviously not in love with the diamond but if we're beat here we just accept that we are doubling up villain.

River: Snap call.