"[I was] totally in shock because I was so proud of her."
Another one of Luann de Lesseps' Real Housewives co-stars is weighing in on her decision to return to rehab.
On Watch What Happens Live Wednesday night, Tinsley Mortimer opened up about de Lesseps' decision to check herself into rehab for a second time, following the completion of an alcohol treatment program back in January.
"[I was] totally in shock because I was so proud of her," Mortimer, 42, told host Andy Cohen. "I had a mugshot in Palm Beach too, and I just feel like I turned it around."
The Palm Beach mugshot that Mortimer alluded to is from de Lesseps' arrest for disorderly intoxication, resisting arrest and battery on a law enforcement officer in December. The reality star was charged with felony resisting an officer with violence as well as misdemeanor charges of trespassing and disorderly intoxication in January.
"I felt like she was doing that and the cabaret show is just so amazing and I was just so proud of her and it's just sad," Mortimer said. "I wish her the best and I hope she can work everything out."
On Monday Bravo confirmed that 53-year-old de Lesseps had checked into rehab in a statement to ET.
"Bravo supports Luann's decision to focus on her health," a network spokeswoman said in the statement. "She is part of the Bravo family and we continue to stand by her as she copes with this challenging situation. At this time, we hope everyone will respect her privacy."
Bethenny Frankel, another Real Housewives of New York cast member, told People that de Lesseps would not be at the highly anticipated reunion special taping this week.
"This weekend, Luann was surrounded by her girlfriends and decided -- with their support -- that in light of recent circumstances, it is the healthiest choice for her not to attend Tuesday’s reunion taping so that she can continue in her healing process," Frankel, 47, told the outlet. "Luann is now surrounded by a core group of people who truly have her best interests at heart and who are working to make sure she gets the help she needs."
"Bravo has been very supportive of Luann during this time," Frankel continued. "It’s a brave and honest decision by her, and everyone is rallying around her and wants the best for her."
Earlier this month the mom of two celebrated six months sober with her ex-husband, Count Alexandre de Lesseps. Following that happy announcement, the Count and their two grown children -- Noel and Victoria -- sued the reality star.
ET caught up with de Lesseps back in April, where she opened up about her sobriety and time in rehab.
"I was using alcohol to numb myself, and now that I'm aware of that, I don't foresee that I am going to have this problem again," she said at the time. "Right now, I'm just not into drinking, because I feel so much happier without it."
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