Girls Star Allison Williams is Engaged!

Allison Williams' on-screen alter ego, Marnie, may be grappling with a broken heart on Girls, but in real life, she has some happy news to share: she's engaged to be married!

Her rep confirmed that the 25-year-old actress is tying the knot with her longtime boyfriend of three years, Ricky Van Veen, an entrepreneur and the co-founder of CollegeHumor.com. (Fun fact: Williams has written and starred in her own hilarious web clips, including a Mad Men-themed video and Funny or Die episodes where she played Kate Middleton.)

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The pair met while filming the pilot for her hit HBO series. The bride-to-be has her dad's blessing (NBC Nightly News anchor Brian Williams): "He likes him a lot," she told Larry King during a recent interview.

Williams may be racking up acting accolades, but there's one role in particular that she's looking forward to down the line: being a mom. In Glamour's 75th anniversary issue, she reveals that, "If you go into acting for love of the craft, and you dodge the fame aspect, it's more sustainable. My goal is to create a career I can walk away from and become a mom. I'd love to be a mom - and not have to bring kids into my trailer. That's my long-term thinking. Or a balance [of both]."

In the meantime, they'll be busy with planning the details of their big day. Williams' style icon is Grace Kelly, so we're predicting a spectacular wedding gown!

Congratulations to the happy couple!

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By Stefania Sainato