Portal 2 Demo

I SWEAR TO GOD I REMEMBER THIS THERES ONE AREA I REMEBER CLEARLY, TIGHT PORTAL 1 HALLWAYS WHERE YOUR WITH WEATLEY, GLADOS IS TELLING THE PLAYER NOT TO DO SOMETHING AND WEATLEY WAS SAYING TO DO SOMTHING I WENT THREW THIS TUBE THAT SENT ME TO ANOTHER AREA WITCH HAD A PUZZLE (btw i pretty young while playing this so i didnt know how to use the portal gun and weatley wouldn't get off me so i couldn't play the rest but i guess this is the old portal 2 glados bossfight) since i couldn't play the rest level, i lo...

Whatever happened to this demo? Obviously, this is prove that this existed... but what happened to it?!

This thread will never be seen. EDIT: ok I get it, everyone sees me

this is half-life 3?