What would you do?

Your Cards


Position
One before the button

Board




Just short of the bubble...

Details:
You call a middle position raise from an semi tight player and the big blind also calls.. You and the semi tight player are about even in chips and the big blind is short stacked... Big blind pushs w/ less than a quarter of your stack on the flop... Tight player checks and you bet the pot.. Tight player calls.. The turn comes a third spade and the tight player pushs for the remainder of his chips.. Do you call or fold???