(2 point Flaw)
There is something you like, love or are fascinated by to the point where you often disregard common sense to cater to this drive. You react positively to anything related to your obsession, even if it's not in your best interests. For example, if you are obsessed with supernatural creatures, you will go out of your way to talk to and befriend vampires, werewolves and stranger things, and find out as much as you can about them, disregarding all warnings. If you are obsessed with Elvis, you have your house decorated with black velvet paintings and annoy your friends with your constant talk about the King. You don't necessarily believe that Elvis is still alive, but you buy every supermarket tabloid that carries an article about him anyway. There are many other obsessions, including British royalty, guns, football, roleplaying games...you know the type.