Couple: Wolverine and Jean Grey
Technically Jean Grey (Famke Janssen) is married to Cyclops (James Marsden) in all three X-Men films but she’s got a powerful connection with the feral Wolverine (Hugh Jackman) that threatens to derail that marriage and the superhero dynamic in Professor X’s home. While Wolverine is the clear instigator of her temptation, Jean certainly flirts dangerously with the hairy dude. When she goes Phoenix, the pair finally lip lock dramatically but with many a great superhero romance, tragedy is always just around the corner.