Stalled Avalanche

I was driving down the street when my 2001 Red Avalanche stalled. It was right outside of my Girlfriend's house! She looked out of her window and saw me trying to restart it and laughed! We cant go on any dates until I learn and fix my car! HELP!!!

I Finally got it towed. The engine costs more to replace than to buy a used car. i bought a used tahoe about 6 weeks ago.

so.........what was wrong with it ??

They say that the Engine was completley "run-out".
My oil tank aws emty, but still trying to get oil to the rest of the engine.[My fuel tank was bad also, but i knew about this]