On Monday, October 19, TMZ published photos of the fashion designer, 63, and the 32-year-old stylist jetting into Los Cabos, Mexico, together.
“He’s been denying for more than a year that there’s anything going on with Hannah, but Lori has never really believed him and now she’s taking this as proof she was right all along,” reveals the source.
Since their September 2025 split, Giannulli has been spotted with Harrison on several occasions: shopping in Beverly Hills that October, hitting up a West Hollywood nightclub in November and grabbing coffee in Los Angeles in February.
“It’s a blow to her ego to see him with someone half his age, especially after the way he behaved towards the end of her marriage,” the source admits. “But she’s not sitting around feeling sorry for herself.”
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On the contrary, Loughlin, 62, is “looking ahead and counting the days until the divorce is finalized and she can have that closure and move on,” says the source.
As Star previously reported, the Full House star’s marriage never really fully recovered from the college admissions scandal and last month, just one year after news of their separation broke, Loughlin officially filed for divorce from Giannulli, with whom she shares daughters Isabella Rose, 28, and Olivia Jade, 27.
“She’d love to meet someone herself and fall in love,” the source shares. “She just hasn’t quite been ready to get back out there and date.”
However, “her friends are hoping seeing Mossimo move on like this might be the push she needs to get back out there herself,” says the source.