In court Monday, she painted a portrait of a man obsessed with money and power.
Egrie-Wilcox says she rarely saw Fumo pay for anything himself. Instead, she says, Fumo liked to use what he called O.P.M: Other peoples' money.
In court, Egrie-Wilcox says he used that term quite a bit, even when they went out to dinner.
The government says the "O.P.M." was tax dollars and money that came from Citizens Alliance, a community charity Fumo had set up.
Egrie-Wilcox says Fumo liked to buy stuff.
She says he loved his position as a state senator and being above everybody else, describing his status as the equivalent of royalty.
The goverment has accused him of improperly using $2 million dollars in taxpayer and charity money to fund his lavish lifestyle.
Egrie-Wilcox says that included boating trips at his homes in New England and Florida on fully staffed yachts owned by the Independance Seaport Musem.
At the time, Fumo was on the museum board.
Egrie-Wilcox says he lavished her with gifts, including computers that belonged to the state senate.
And, she says, Fumo liked gifts for himself.
The jurors were shown an email that Fumo sent to her, his friends and supporters. It was a Christmas wish list, with gift suggestions that included a silver service set, fine china and crystal.
Egrie-Wilcox says he got most of what he asked for.
When it was over between her and Fumo, it really wasn't. Egrie-Wilcox says she learned that after she broke up with him that Fumo had her tailed and hacked into her private email.