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'.
(..) Tell him , I'm bringing the baby. And tell him , I'm bringing a mammoth. A mammoth. Mammoth never travels alone. This one does. And I'm leading him to half peak. Look at all that meat. Let's get him ! Not yet! We need the whole gang to bring this mammoth down. Get everyone ready. Now! (..)2002 Ice Age