"He told me we were going to celebrate together, and to my surprise, my parents, best friend, and his family and best friend were waiting there to celebrate with us.

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Scroll down to see Lysacek tell "ET" that he and Liukin are "very close" as well as a picture of the pair posted to the gymnast's Twitter page.

alum Nastia Liukin showed off some shiny new bling on Monday, June 1, when she revealed that she's engaged to boyfriend Matthew Lombardi.

PHOTOS: The best celeb engagement rings ever The Olympic gold medalist, 25, shared a picture of her massive diamond engagement ring on Twitter, writing, "So this just happened..." The pic features a close-up shot of her left hand, with her overjoyed fiancé in the background.

PHOTOS: Olympic athletes turned TV and movie stars "Matt proposed in Boston last night with a beautiful ring he designed himself," the bride-to-be tells Us Weekly.

She also recently co-founded her own agency, the Shine Agency, with Liz Ballard.

PHOTOS: Celeb CEOs "I've worked with several agents over my career, none of whom represented who I was or brought projects to the table that really reflected me as a person, opportunities that I could be passionate about," she told Us Weekly after her elimination last month.

"We have joined forces and hope to represent people that we really believe have stories to tell and brands to build." Want stories like these delivered straight to your inbox?

"The couple -- who met in October 2008 in Rapid City, S.

D., while performing on the NBC special Skating & Gymnastics Spectacular -- confirm to PEOPLE exclusively that they've been dating since last summer."But just last weekend Lysacek, who won a figure skating gold medal on Thursday, said something very different. "I haven't had any time for dating while I'm training.

I'm lonely."Is it possible that feelings between the two gold medalists aren't mutual?

A scan of their twitter pages reveals that the blonde gymnast has tweeted to Lysacek no less than seven times since the Vancouver Olympics began -- while the figure skater has mentioned her just once.