Spock Gets Infected With The Psi 2000 Virus

Lieutenant Commander Spock tours the ship, urging Scotty to expedite his efforts in re-taking engineering, ordering an infected crewman to stop romantically serenading Yeoman Janice Rand, and checking on Dr. McCoy's progress. When Spock enters Sickbay, he finds himself alone with Nurse Christine Chapel, who confesses her love for Spock, infecting him. Ignoring repeated hails from the bridge, Spock's emotional state quickly weakens, so he secludes himself in the briefing room, but not before suddenly breaking down and crying.