Setting up Sherry Stringfield's departure from the series in Season 3, the beginnings of a romance appears to develop between Susan and Mark, or more to the point, they are shown to have problems identifying their current relationship as friendship. Both seem timid and cautious around each other. Initially more upfront about the situation, Susan invites Mark to join her on holiday in Maui, Hawaii, but is embarrassed when he appears hesitant, and later retracts the offer, feeling she overstepped a boundary.