Missed out on the last 40+ years of X-Men comics and feel like you need a scorecard to work out just who knows, is in love with or has married, one another? You're in luck: Such a scorecard exists.
The X-Men Universe Relationship Map - seen in miniature form below just to give you a glimpse of how insanely complicated it is - does all the heavy lifting and explains 40 years of crushes, affairs and reincarnated characters from alternate dimensions for you... As well as making you feel very curious about just how much of a slut Wolverine really is.
The full-size version is available here; get ready to feel sorry for Iron Man. [UncannyXMen.net]