Yolanda Foster Moves Into New Apartment as Source Says She 'Wants Clean, Happy, Positive Energy'

By Aili Nahas and Liz McNeil

12/15/2015 AT 04:00 PM EST

Yolanda Foster is officially moving on – and moving out.

The Real Housewives of Beverly Hills star was spotted moving into a new apartment Saturday in Los Angeles. A source close to the situation tells PEOPLE she is moving to a property that estranged husband David helped her financially to secure.

"Yolanda is devastated her marriage is over, of course. But she can't afford to be sad and miserable," says another source. "She is still trying to find a cure for her disease and she needs to stay as strong as possible. Her friends and her children have been incredible. Yolanda just wants clean, happy, positive energy because she really believes it will help."

Yolanda and David announced on Dec. 2 that they would be divorcing after four years of marriage and nine years together as a couple. She had been living in a condo purchased by David, who has been staying at the The Peninsula hotel in Beverly Hills, sources tell PEOPLE.



Foster, who has been battling Lyme disease, was spotted outside her new building as movers brought in medical equipment.



"They separated due to drifting apart and amicable reasons, not lack of support for her disease," a source close to the couple says.

On Saturday, Foster posted an inspirational message Instagram alluding to the move, captioning a photo of a new telephone system, "First day of the rest of my life....... #DefiningMoment #NewBeginnings #OneFootInFronttOfTheOther #HomeSweetHome."

First day of the rest of my life....... #DefiningMoment #NewBeginnings #OneFootInFronttOfTheOther #HomeSweetHome

A photo posted by YOLANDA (@yolandahfoster) on Dec 11, 2015 at 9:21pm PST

Yolanda 51, has focused on the positive aspects of her relationship with David, 66.

"We had a beautiful love story that I will treasure forever," Yolanda told Andy Cohen on Watch what Happens Live last week. "Unfortunately it was not strong enough to withstand the circumstances that came our way."

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