“Heidi is obsessed with him. She’s totally serious about marrying him,” femalefirst.co.uk quoted a source as saying.
“She says he’s an old soul and great with the kids, so why not make it official.
“No one will be surprised if they’re engaged soon … Heidi has never been good at being alone,” the source added.
The German beauty declared her love for Vito on Instagram last month, while wishing him a happy birthday.
Alongside a photo of them acting silly together, she wrote: “I love you my V. HAPPY BIRTHDAYY. (sic)”