Will & Grace (1998)

S1E6 William, Tell

Jack discloses to Grace that Will had an affair with a "client," sparking her anxiety about what else he might be hiding. Her worries intensify when Will arranges a private meeting with Karen to talk about her legal issues, only mentioning to Grace that he’s meeting with a client. This lack of transparency fuels Grace’s paranoia, leaving her increasingly unsettled about their relationship.