Our home game, 7.5k starting stack
David3103 urge me bb random mp. Blinds 25/50 David raises to 175, called by random, I flat with

Flop

Dave bests for 350, called by mp, I flat
Turn

David bets 850, mp calls again, I flat again.
River

Dave bets c1500, mp flats, I fold.
Line check please x