If you found out that your girlfriend was cheating on you, what would you do? Most couples would have a giant blowout and break up, followed by months of passive-aggressive Facebook statuses and one-upmanship on who can bag the hotter partner immediately afterwards.
Or, if you can keep a lid on your anger, you go and figure out how to get revenge.
Some people set up their cheating spouse so that they catch them in the act on video, which of course gets posted to Facebook immediately afterwards…
…others don’t care about getting hard evidence. In fact, for some people all they care about is embarrassing the living shit out of their soon-to-be-ex in public, sort of like this poor student in a dining hall.