1) Shock and Denial
Now you've processed it, but you're still a little confused. And that makes you frustrated. And when that affects your kill-spread? Now you're angry. You can't deal with it; you may lash out, demanding she make you a sandwich. It's normal to start swearing, just like you always do, really. The game becomes a battleground for your anger. You may use your headset, for evil, as opposed to good (mocking n00bz). You'll keep dropping in headshots and teabagging her corpse. That's what she gets! You're not psychotic; it's only virtual!
No pictures or videos. You got an outraged message, which is crazy. If she didn't want attention, she shouldn't have been so blatantly female over Xbox Live. But still, you failed and got rejected by a female gamer. You feel so bad that you don't want to even leave the house, which is pretty convenient, because you weren't going to anyway. But still, it's bad. She would have been perfect; the two of you could have raised beautiful, beautiful gamers. She could have been the Lance to your Bill. Actually, let's not get into that imagery. That's only going to make the depression worse.
5) Working Through it
You remember there are boobs on the internet.
Cover your bases that way.