My xbox 360
Damn if my girlfriend did that, it would be on.
Heres what you do:
Its only 3 months old, call 1800-4my-xbox they can replace it. Don't tell your girlfriend broke it, tell them the red lights started one day.
They wil lship yuo box, you put eh box inside the box they give you, you ship it back to them, they ship you a brand spankin new 360.
If for some reason they refuse to replace it you can pay to have it repaired at: