Olivia Jade Giannulli and sister Bella Giannulli are “definitely upset” by their parents Lori Loughlin and Mossimo Giannulli’s separation — but they “aren’t surprised,” a source exclusively tells Us Weekly.

“They had seen the way their parents were interacting in the last year and knew this was coming,” the insider says. “It was not a shock to anyone in the family.”

Us confirmed on October 2 that Loughlin, 61, and Mossimo, 62, have separated after nearly 28 years of marriage.

While the news was surprising to some fans, the source tells Us that the couple were “arguing often and their lifestyles weren’t meshing anymore.”

Lori Loughlin and Mossimo Giannulli: A Timeline of Their Relationship

The Full House alum and her spouse “grew apart and Mossimo moved on quickly,” the insider says, n

See Full Page