Congratulations are in order for Rachel Bilson and Hayden Christensen … it is being reported today that the couple are engaged to be wed — and have been since December! The couple have kept the news quiet … until now. RayDen are gettin’ hitched, y’all:

Rachel Bilson and her longtime beau, Hayden Christensen, got engaged quietly over the holidays, PEOPLE has learned. According to a friend of the actress, the two, who costarred in 2008′s Jumper, got engaged in December. “They’re so excited,” says the pal, adding that no wedding date has been set. “They’re a great couple. Rachel seems thrilled beyond belief.” When contacted, Bilson’s rep told PEOPLE, “I don’t comment on my clients’ personal lives.” A rep for Christensen could not immediately be reached for comment. The engagement news was first reported by the New York Post’s Page Six.

According to Page Six, Rachel was spied wearing a huge engagement ring and when asked by a fellow passenger on a plane whether or not she was married confessed that she was merely engaged:

A Page Six spy spotted Bilson on a Virgin America flight from LA to JFK Monday night with her mom and tells us the actress is engaged to longtime beau Hayden Christensen. “A man sitting in front of her on the plane saw a ring on her finger and asked if she was married,” said our snitch, who overheard Bilson reply, “I’m not married yet, just engaged. I know I look like I’m 15, but I’m actually 27.”

Truth be told, I never really saw Rachel and Hayden sticking it out for the long run but I am very glad to see that they proved me wrong. Love should always be celebrated, well … almost always. While I STILL wish that Rachel was attached to her former boyfriend Adam Brody, I wish her and Hayden nothing but a lifetime of happiness together!!! Congrats!!

[Photo credit: Splash News; Source, Source]