A surgeon's wife and mother of three children, Jill Kelley is a sort of self-appointed social ambassador for the nearby US Central Command and other officers at MacDill air force base in Florida. The couple held lavish parties for the military top brass, befriending Petraeus and his wife, Holly, when he took charge of Central Command in October 2008.
Ms Kelley, 37, stayed in touch with Petraeus when he took command of the Afghan war, reportedly exchanging nearly daily emails. The account was regularly monitored by his aides and messages were not romantic, according to former staff.
In May, Ms Kelley started getting anonymous, harassing emails warning her away from Petraeus. She reported it to the FBI. Agents traced the messages to Broadwell, uncovering her affair with Petraeus.
Ms Kelley’s twin sister Natalie Khawam also socialised with Petraeus and Allen. They both wrote letters praising her as a devoted mother to help her in a bitter child custody battle with her ex-husband.