Slater, of course, said "yes" to the adorable proposal, and the newly engaged couple celebrated the exciting news by having drinks with their fellow cast members and show producers at Mixology 101 at The Grove immediately following the live show, Slater tells ET exclusively. After drinks, Slater and Farber continued the festivities in a more intimate setting with Farber’s sister, her husband and their two kids at Italian restaurant Pace.
The dancing duo is working on planning an official engagement party for the near future.
"It feels amazing that we got to share that with all our friends. I totally forgot that it was also live on TV," Slater, 27, tells ET about the romantic moment. "It's brilliant to get engaged and then be able to turn around and have your friends there with you watching it happen!"
"Lots of people would think that it's not private enough to get engaged on national TV, but after being with Sash for over 5 years, there's probably nothing he could have said to me that I haven't already heard," she adds. "Getting engaged was something that we'd talked about a lot, so it felt completely natural."
Not surprisingly, a day later, Slater is still over the moon about her engagement.
"Being able to do it in a massive way where we could share that exact moment with all our best friends, my family at home, Sasha's family at home, and everybody who loves the show watching was by far the best ever proposal I could have asked for," she says. "It was so magical. I've never felt more love in my life."
Of course, Slater's also definitely psyched about her gorgeous wine-colored sapphire engagement ring, which Farber purchased at Michael B. Jewelry in Studio City, California.
"The ring is so magical!" Slater gushes to ET.
ET spoke with Farber on Tuesday backstage after the show, when he admitted he was plenty nervous
prior to his public proposal.
"I was dying, I'm not gonna lie," the 33-year-old Australian dancer told ET. "Usually I'm like, running around and having fun backstage but I was just in the corner [before proposing]."
"I touched my hands and they were sweating, and I was like, 'Oh my God, I've still got to do this dance. And then I've got this in my pocket, what if it falls out?'" he added. "I didn't know what to expect."
Thankfully, it all went off without a hitch. Slater gushed to ET that it was the best day of her life.
"He didn't even say one word and I think I started to hyperventilate and do all that really, like, ugly crying stuff, which I'm sure I'm going to regret, but it was the best day of my life!" she said.
--Reporting by Brendon Geoffrion