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Yolanda Foster, David Foster

Dimitrios Kambouris/Getty Images for EJAF

Yolanda Hadid is getting candid about her big split from David Foster.

Fans of The Real Housewives of Beverly Hills were shocked to hear that the couple decided to get a divorce, and the blond beauty didn't deny that her romance with David was one for the books. "You know we had a beautiful love story that I will treasure forever," Foster told Andy Cohen when calling in to Watch What Happens Live tonight.

"Unfortunately it was not strong enough to withstand the circumstances that came our way," she continued, and when asked if her Lyme disease played a role in the decision, she admitted that it definitely made things harder for the pair.

"Well, chronic long-term illness is extremely challenging," Yolanda added. "Not only for the person sick but also for the caregiver. It for sure changed the dynamic of the relationship."

But, in true Yolanda Foster fashion, she explained that she doesn't want to focus on what didn't work between her and David, and instead, wants to praise the moments of love that they shared together. "The truth is that we both worked through the difficult time through the best of our ability, so rather than judging what went wrong, I pick to honor the great times that we shared the last nine years. There were a wealth of good times."

The former supermodel has been suffering from chronic Lyme disease since 2012, a diagnosis that has taken a visible toll on the blond beauty's entire way of life.  However, Yolanda also shared that she's doing much better now.

"I am much better since the last time that I saw you," she told Cohen. "I have about 60 percent better brain function than I did in the last year. I can still only live and plan one day at a time. The exciting thing is watching the episodes and inspiring me, and I could see the progress that I have made. I am excited and grateful for that. I will continue to fight for a full recovery."