Charlie Pace & Claire Littleton
Charlie and Claire developed a bond throughout most of the first season, as Charlie reached out to Claire as a friend. However, as Claire starts to trust Charlie and lean on him, she is kidnapped by Ethan who also attempts to murder Charlie by hanging him from a large banyan tree. When Claire returns she does not remember the events or the people she has met since the day of the crash. Charlie reaches out to her again to gain her trust back. After Aaron is born, Charlie voluntarily assumes the role of 'daddy' to Claire's 'mommy', a bit to Claire's surprise. But when Claire discovers Charlie is/was a heroin addict, she gets angry at for lying to her and the situation only grows worse when Charlie, prompted by dreams that he interprets as prophecies, tries to kidnap Aaron to baptize him in the ocean. After this incident, Locke decides to watch over Claire while Charlie looks on jealously. Things seem to be on a standstill for a while until Charlie returns from the the Swan Station discharge, and Claire looks genuinely happy to see him alive and well. That evening, she kisses him. However, once Charlie discovers that Desmond's clairvoyant flashes all revolve around his own death, he volunteers himself to swim down to the Looking Glass station to un-jam incoming transmissions. Realizing his doomed fate, he says goodbye to Claire but doesn't tell her that he doesn't plan to return. During his heroic act, he drowns. Claire is devastated upon hearing of Charlie's death.