The pal says, "It was the first time all the kids met him together and it was obvious that he charmed them.
"At one point, when he was introduced to a family friend, one of Diana's daughters cracked, 'Jon's one of us.'"
Friends claim the couple have been fond of each other for years but didn't embark on a romance until last month when Gordy set them up on a dinner date.
A source says, "Diana has been to hell and back over her booze problems and DUI (drink-driving) arrest, and he (Gordy) kept telling her that since she beat her demons and emerged from the depths of depression, all she needed now was love.
"And I'll be damned if he didn't go out and find the perfect man for her himself."
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