She was devastated when she found out that he didn't really love her, and had only been 'leading' her 'on'. [=he had been leading her to believe that he loved her]
It turned out that he had been 'leading a double life'. [=deceiving people about his life, not telling the whole truth about his life]
The judge made it quite clear that the lawyers were not permitted to ask witnesses 'leading questions'.
(..) is best for his people. Helm's Deep has saved them in the past. There is no way out of that ravine. Th'oden is walking into a trap. He thinks he's leading them to safety. What they will get is a massacre. Th'oden has a strong will, but I fear for him. I fear for the survival of Rohan. (..)2002 The Lord of the Rings: The Two Towers