Kathy Hilton addresses how her sister, Kyle Richards, is holding up after Mauricio Umansky was spotted kissing another woman.
Kathy Hilton is sharing an update about how her sister, Kyle Richards, is doing after her estranged husband, Mauricio Umansky, was spotted kissing a mystery woman in Greece last week.
Kathy, 65, walked the carpet at the fashion show for Sutton Stracke's The Sutton Green Label Brand Capsule Collection at The Godfrey Hotel in Hollywood on Monday, and spoke with ET's Brice Sander about seeing the photos of Mauricio -- which come amid his year-long separation from Kyle.
"Eventually it was gonna happen, and I think it's very difficult to see," Hilton admitted. "I was concerned about her, but I spent the whole day with her that day."
In a pic obtained by Daily Mail last week, Mauricio was seen passionately greeting a blonde woman at Mykonos Airport.
The photo shows the woman, wearing a sheer dress, sandals and sunglasses, kissing Mauricio on the lips as her arms are wrapped around his neck. Mauricio, who opted for a casual T-shirt and sneakers, responded in kind.
Mauricio and Kyle, who tied the knot in 1996, confirmed their separation last summer. The couple's marital woes played out on season 13 of The Real Housewives of Beverly Hills, and culminated in the final reunion episode, where Kyle hinted that divorce was on the horizon.
Kyle and Mauricio share daughters Portia, 16, Sophia, 24, and Alexia, 28. Kyle additionally shares Farrah, 35, with her ex-husband, Guraish Aldjufrie.
According to Kathy, she "was really more concerned with how the girls were gonna take it." However, when it comes to Kyle herself, Kathy said, "She looks the best she's ever looked."
When ET spoke to Kyle in April, she praised her daughters for their support amid her and Mauricio's separation.
"They just have been the most unbelievable source of support for me. It's funny because I am the mom, but they are giving me advice and they're just so smart and so together," she said. "Obviously, as a mom, I worry about them first. But they really have been taking care of me, too. These have been some of my most proud moments as a mom, honestly. How they've handled all this."
For more on the couple's high-profile split, see the video below.
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