In December 1983, Plato moved in with her boyfriend, rock guitarist Lanny Lambert. The couple married on April 24, 1984, and their only child, Tyler Edward Lambert, was born on July 2, 1984. When it was revealed that she was pregnant, she was written out of "Diff'rent Strokes". Her co-star Conrad Bain had revealed that she was happy about her baby and that she would no longer be alone. Bain stated in an interview with "People": "She deliberately got pregnant while doing the series, when I spoke to her about it, she was enthusiastic about having done that. ... When I get the baby, I will never be alone again."