By Amber Goodhand - Radar Reporter
Jennie, 39, had lunch at Real Housewives of Beverly Hills star Lisa Vanderpump's swanky Villa Blanca, wearing a $330 Jia Collection striped sweater.
The couple has since denied that a third party was involved in their split.
Jennie's soon-to-be ex was also spotted without his wedding band on last week while riding his motorcycle in Los Angeles.
Jennie and Peter have three daughters together — Luca, 14, Lola, 9, and Fiona, 5 — who will be starring with their mother on her new CMT reality show, Jennie Garth: Little Bit Country, premiering April 20.