7 handed 10/20 action. $2750 effective stacks. A 14/6 huge nit set miner raises utg+1 to 70 a lag cold calls on button I have in the sb and 3 bet to 300. UTG+1 calls button calls. So pot is like 950$ going to flop. Flop comes I check utg+1 checks button checks turn I check again. utg+1 bets 750 into 950 button folds I fold. Thoughts?