However, on Tuesday morning, Ramona Singer shared a photo on Instagram of her and de Lesseps seated at a table with their Real Housewives castmates, including Sonja Morgan, Bethenny Frankel, Tinsley Mortimer, Dorinda Medley and Carole Radziwill.
"The gang's all here," Singer captioned the photo, which was later deleted.
Meanwhile, Morgan and Radziwill posted pics of the cast posing for fake mugshots, though de Lesseps was noticeably missing from the photo shoot. "#RHONY outlaws," Morgan cleverly captioned the post.
On Tuesday afternoon, de Lesseps herself tweeted that she was back home. "It’s good to be home. I’m doing great. Spending time with friends and family," she wrote. "Thanking everyone for your continued good wishes and support."
It’s good to be home. I’m doing great. Spending time with friends and family. Thanking everyone for your continued good wishes and support ❌⭕️
Just prior to entering a treatment facility, de Lesseps issued several apologies in regard to her arrest.
"After the events of last Saturday night in Palm Beach, I am truly embarrassed. I have decided to seek professional guidance and will be voluntarily checking into an alcohol treatment center," she shared on Dec. 29 in a Facebook post. "I intend to turn this unfortunate incident into a positive life changing event."
She concluded, "I am committed to a transformative and hopeful 2018."
As ET previously reported, de Lesseps -- who divorced Tom D'Agostino in September -- was taken into custody at 1:25 a.m. local time and was released on her own recognizance from the jail 10 hours later. An assistant state's attorney told the Palm Beach Postthat ahead of the arrest, she slammed a door, kicked at least one officer and said, "I'm going to kill you all."
Here's more on the reality star's run-in with the law: