Couldn't see hands that would call the 3bet and the flop that I had beat on the turn. Vil is 31/15 over 136 hands and 3bets around 9% so likely has a decent calling range.
I don’t think we can just fold here for that amount. You would have to know for certain that vil only does that w 2 pair+ and we don’t. Call, and fold river to a bet is better (and I think we can exploit fold on river even if bet is on the smaller side).
Other lines to consider is just betting the turn yourself and folding to a raise or large bet on the river, or even check calling the turn and then donking the river (this play could get vil to fold anything besides a 10 or a set, although clearly high variance as we lose every time vil has that)