Sheldon and Amy or “Shamy” [“ShAmy”] first met when an online dating site paired them up as the perfect match for each other (courtesy of Howard and Raj, who secretly registered Sheldon on a dating site). Although she considered him to be her “kinda-sorta-boyfriend”, Sheldon only considered Amy his friend (“She’s a girl and she’s my friend, but she’s not mygirlfriend”). Despite their platonic closeness, there had been hints that there might be something deeper between them. There were instances where Amy showed her attraction for Sheldon and there were instances where Sheldon, despite his denial, showed his jealousy at other men’s interest in Amy or would go against her personality quirks to please her. They finally became official “boyfriend/girlfriend” during”The Flaming Spittoon Acquisition”. Three years later they professed their love for each other. Howard first dubbed them as “Shamy”. Amy more than once by season 7 has suggested that they could move in together. After one such request, Sheldon even admitted to Stuart that Amy loves him. In season 8 they have admitted that they love each other and were planning a future together until Sheldon burned Amy out and she broke up with him. They reconciled in “The Earworm Reverberation” and consummated their relationship in “The Opening Night Excitation”. Sheldon’s intention to propose is revealed in “The Commitment Determination”, though Amy finds out later on in “The Meemaw Materialization”. In “The Cohabitation Experimentation”, Sheldon and Amy first try an experiment in living together in Penny’s old apartment and then decide to move in together permanently. They then do an experiment together in “The Collaboration Fluctuation”. In “The Gyroscopic Collapse”, Amy accepts an offer to go to Princeton for a temporary job, leaving Sheldon alone. In “The Long Distance Dissonance”, Sheldon drops everything and runs off to Princeton and proposes to her. They got engaged in the Season 11 Premiere The Proposal Proposal.