[H][D] PvP Help holding proxy 2 gate when you skip the zealot

Hello everyone, I am currently a diamond Toss on EU server. This morning I played this very short and humerus game.

http://drop.sc/348227

I realize this is a fairly standard proxy 2 gate, but I do not often come up against cheese on the ladder anymore, and I am wondering how do you beat this if you are doing a build that does the following...

No probe scout, scouting comes from 5 Stalkers.

Skip zealot, not enough minerals for it

The specific build I was doing is Hwangsin's Stargate Expand. Does proxy 2 gate simply hard counter builds like this? Would like to know your guys opinions on how I should have reacted upon seeing the zealots. Thanks. Hope you enjoy the desperate stalker micro :)