Gabrielle came to Salem in 1987 to seek revenge on her old partner Shane Donovan. Gabrielle pretended to be a Russian Spy who had an affair with Shane Donovan in exchange for secrets. Once she let this info leak to the ISA Shane was fired. Shane was eventually reinstated and Gabrielle was exposed for what she had done.
In 1988 Gabrielle began seeing Mike, which caused Shane Donovan to become jealous.