Villain is unknown.

I opted for a bigger bet OTT 'cos imo the population tends to have a narrower value range vs bigger bets than smaller ones.
As played and paying attention to the sizings, should we fold this?

Idk if we had had to call and evaluate the river.
His line doesn't make a lot of sense. Some KQ combos are insta XRaising this flop vs MP opener.