Tiffy Gerhardt is the wife of Mack Gerhardt, and the mother of Jen and Lissy. She has a complicated and quite strained relationship with her husband. In particular, Tiffy is a serial adulteress, often having affairs with other men, most notably her husband's superior officer Col. Tom Ryan. Because of this, her marriage with her husband is strained with Mack occasionally reacting with physical violence upon learning of his wife's adulterous affairs.However, when she attempted to exploit this by slashing her face with a razor blade, she is told by fellow Army wife Molly Blane to simply divorce her husband in part because Tiffy had lied to Molly about ending her affair with Colonel Ryan, and had been caught by another Army wife, her friend Kim Brown, entering a motel to have sex with Ryan. She worked at a strip club for some time to pay the bills.