How to win a bet against your best friend’s fiancé:
Step 1: Find a girlfriend to take to your best friend’s wedding.
Step 2: When you fail at the previous step, decide to get a fake girlfriend.
Step 3: Make a deal with the local goth bartender to be your date for a week in exchange for doing manual labor around her house.
Step 4: Do your best to avoid your ex at this wedding.
Step 5: Try to keep your hands to yourself and off of your gorgeous date.
Step 6: When you fail at the previous step (again), try not to notice how awesome your date is.
Step 7: Try not to fall in love with her.