WATCH: Pia Miller attends Oscars with boyfriend Patrick WhitesellThe 39-year-old mum-of-two took to Instagram to share the exciting news with her 705k followers as well as a snap of them raising a toast on Patrick’s Malibu beachfront balcony.She captioned the photo "PW²" in a nod to their matching initials.Love is in the air! Pia and Patrick 'cheers' to their future.Celebrities flocked to the comment section to send their well-wishes, including model Megan Gale and former WAG Nadia