It's been one month since Luann de Lesseps was arrested after going on a drunken rampage in Palm Beach on the anniversary of her short-lived wedding to Tom D'Agostino.

But she looked happy and healthy as she was pictured for the first time since leaving rehab to film an upcoming episode of the Real Housewives of New York.

Cast mate Ramona Singer posted a picture to her Instagram account earlier today showing the friends having dinner in Connecticut, captioning it: 'The gang's all here #reunited.'

It has since been taken down.

Luann later tweeted for the first time since her arrest to update her fans on her progress.

'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,' she said.

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Back and better than ever: Luann (top) was pictured for the first time since leaving rehab to film an upcoming episode of the Real Housewives of New York in Connecticut

Update: The Countess tweeted for the first time since her arrest letting fans know she was doing great and was finally back home after a stint in rehab

Mugshot: The 52-year-old mother-of-two 'pled not guilty' to battery on a law enforcement officer, resisting arrest with violence, and two counts of corruption by threat

The 52-year-old entered a rehab facility three weeks ago after pleading not guilty to battery on a law enforcement officer, resisting arrest with violence, and two counts of corruption by threat after the incident on 24 December 2017.

Friends close to the star told DailyMail.com exclusively that she has made great progress and is humbled by what happened.

'LuAnn looks fantastic, she really has made great progress in rehab. She is back and better than ever.

'She feels terrible about what happened and wants to make it right.'

Another close friend said: 'This is her first time catching up with all of the women since the Palm Beach incident and she wanted to set the record straight and tell her friends what really happened.

'She claims that she wasn’t with a guy half her age and this was all a terrible misunderstanding. She is very humbled.

'She’s also taking names and kicking ass.

'She is well aware of who spoke to the press about her and told lies and she will deal with them once she is back in New York.

'The Countess will return stronger from this and she can’t wait to tell her story properly and set the record straight.'

Already engaged to another woman: The Connecticut-born socialite and Tom D'Agostino Jr. famously tied the knot last year in Palm Beach before ending their marriage eight months later

Luann was taken into court in handcuffs after she was arrested in the early hours of Christmas Eve for trespassing in a room at The Colony Hotel in Palm Beach, Florida

'I'm sorry she's not here': The Real Housewives of New York City's Bethenny Frankel (pictured November 8) had 'been texting' her troubled castmate Luann de Lesseps

Castmate Bethenny Frankel revealed earlier this month she had 'been texting' her friend since she checked into the alcohol treatment center.

'She's taking care of herself. She said she's in a good place, so you know like I said, we all have our flaws.

'Luann's no different,' the 47-year-old Skinnygirl mogul told E! News.

'We all have high points, low points, times we feel confident, times we feel less confident and so... but I'm sorry she's not here.'

Dorinda Medley also said of the 52-year-old: 'The great thing is, it is a great opportunity to look backwards in four to five years and say, "Thank God that happened. Look who I am today if it was not for that.

'Luann's a strong girl and I love her, I support her and I look forward to what's going to happen going forward.'

The 47-year-old Skinnygirl mogul told E! News: 'She's taking care of herself. She said she's in a good place, so you know like I said, we all have our flaws. Luann's no different. We all have high points, low points, times we feel confident, times we feel less confident'

Luann's other co-star Sonja Morgan (R) noted: 'She is taking care of herself for her children and for her family...It happens to a lot of people just most people don't get caught'

And Luann's other co-star Sonja Morgan noted: 'She is taking care of herself for her children and for her family...It happens to a lot of people just most people don't get caught.'

De Lesseps (born Nadeau) is 'committed to a transformative and hopeful 2018' and revealed her boozy December 24 arrest in Palm Beach was due to 'buried emotions' about the end of her second marriage.

The Connecticut-born socialite and Smart Source CEO Tom D'Agostino Jr. famously tied the knot last year in Palm Beach before ending their marriage eight months later.

The former licensed nurse has two children - daughter Victoria, 22; and son Noel, 20 - from her first marriage to Count Alexandre DeLesseps, which ended in 2009 after 16 years.