 When Liz and Jack first meet, and for several seasons thereafter, neither realised that they had spoken to each other by telephone twenty years before.In the beginning of the series, Liz and Jack had an antagonistic relationship.As the series progressed, however, this original dislike disappeared, and they are now close friends, with Jack at one point going so far as to tell her, "Lemon, I honestly don't know what I'd do without you".