Damn, this "friend" breaks into your house, invites his buddies over, ate your hot dogs, orders porn off your cable, AND talks behind your back leading you to discover that this girl you like actually hates you and likes him?
And all you do is call the cops and dick around with his myspace?
Go to war, kid. Make this guy wish he doesn't live next to you.
First, you pose as him by accessing his myspace and inviting that girl to meet him at a nice secluded area. Now start cooking up some homemade chloroform and on the way there buy some gasoline and duct tape. When you see the girl...you attack.
Now you got some bait. Nothing better then some bait to soften him up.
Ask him to meet up with you somewhere. Take the bait with you and dowse her in gasoline. When he shows up, beat the **** out of him with a bat. Then dowse him in gasoline. Take out a lighter and make a speech about being an agent of chaos. Then you simply light them on fire. Bring his mother along too. Bring his mother to watch her son burn. Then when she cries, tell her only her tears can save him. Only her tears can put out the fire. Scream at your burning friend saying that it's his mother's fault because she won't cry enough to put him out. Watch them burn. Hear her cry. Chaos is fair.
And remember....
That ****er ate your hot dogs.
Bye