So, you're content and happy with that special person in your life, deliriously in love, even. But come the advent of Facebook something changed: we were all gifted the power of being able to check out - predominately colleagues at work - what other people's partners look like. I mean, god forbid that World Of Warcraft-addicted contractor on the other bank of desks has a hotter girlfriend than you, right? Or, even worse, that person you've always though was a tad out of your league, actually boasts a profile picture with some kind of pond mutant on their arm. The art of partner perusing lays all of this bare in grand stalker-ish style.