EXCLUSIVE: RHONY star Luann, 52, WAS NOT in bed with her ex-husband before 'drunken' arrest - it was a boytoy HALF her age, claim friends

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Real Housewives of New York star Luann de Lesseps was found in bed with a boytoy half her age before her arrest for drunkenly attacking a cop, DailyMail.com has been told by their friends.

The unnamed drinking companion split before police arrived at the Colony Hotel in Palm Beach, Florida, to cuff the sloshed 'Countess', 52, for trespassing in the wrong room and refusing to leave. 

DailyMail.com can reveal that rumors suggesting it was Tom D'Agostino, de Lesseps' ex-husband whom she married at the same upscale hotel last December, are wide of the mark. 

De Lesseps' friend Julie Olson, who was drinking with her in the Polo bar on the night of the arrest, hints that the man was much younger than the reality star.

Olson said she had promised her close friend she wouldn't comment further, but admitted: 'Well, we all like to defy our age.'

Real Housewives of New York star Luann de Lesseps was found in bed with a boytoy half her age and not her ex-husband Tom D'Agostino before her arrest over the weekend in Palm Beach, Florida. The two married last December (pictured) and split in August

The 52-year-old was arrested after she broke into a room and was found in bed with the young man at the Colony hotel. Pictured: De Lesseps' mugshot (left) and in court on Sunday (right)

She laughed off the suggestion that the man was D'Agostino or de Lesseps' former boyfriend Jacques Azoulay, adding: 'I couldn't give you the gentleman's exact age or his name because I don't know it.'

She previously told Page Six: 'It’s a guy she had previously dated. It’s not a big deal,' declining to elaborate.

The police report stated that Olson was present in the room when her celebrity gal pal was busted, however she claimed she was only there to diffuse things and disputed being drunk.

Tom D'Agostino's close friend added to DailyMail.com: 'It's laughable to think it could be Tom as the man involved appears to have been in his mid-20s.'

D'Agostino, a 50-year-old businessman, has a home and office in Palm Beach but has little contact with de Lesseps after their ill-fated seven-month marriage ended in divorce and rancorous tabloid claims of cheating in August. 

'Tom has a place down there, he spends the winter there, but he was 100 percent not the man who was in bed with her,' dished the friend. 

'The last time he saw Luann was on a red carpet in New York months ago. They don't communicate. 

'He only learnt she was in town and that she had been arrested the same way everyone else did - through the news.'

De Lesseps' friend Julie Olson, who was drinking with the reality star in the Polo bar on the night of the arrest said: 'I couldn't give you the gentleman's exact age or his name because I don't know it.' Pictured: The friends in March 

De Lesseps was arrested after reportedly breaking into a room at The Colony (pictured) despite having one on the floor below

He added: 'He was very sad to hear about it and he felt very bad for her and her family to have to go through this during the holidays.' 

A report filed by the Palm Beach Police Department confirms de Lesseps was a registered guest Saturday night at the Colony, a landmark hotel known for its well-heeled clientele with rooms costing upwards of $446 per night. 

She was staying in room 327 but when she and her male companion left the Polo bar together they headed to the wrong floor and entered room 407 as a maid was cleaning. 

The man split after security guard Carlos Lopez found the pair in bed but a 'highly intoxicated' de Lesseps refused to budge and cops were called, according to the report by Officer Robert Mastrangelo.

When an Officer O'Leary eventually opened the bathroom door she 'shoved Officer O'Leary with an open palm to the chest, then slammed the door on Officer O'Leary's face, striking him in the forehead.' 

She resisted again as Officer O'Leary placed her in handcuffs, managing somehow to slip out of the shackles once she was in the patrol car. 

De Lesseps then 'attempted to exit the vehicle', according to the report, kicking and fending off the officers as they tried to cuff her again, while telling Mastrangelo: 'I'm going to f***ing kill you.' 

Luann de Lesseps was seen enjoying a beachside BBQ at Christmas with her brother at his Jupiter home (above)

De Lesseps has been busy filming the upcoming season of Housewives (above with the cast last week)

As she arrived at the police station she repeated her threat, telling officers she was 'going to f***ing kill you all,' it says. 

A disheveled de Lesseps appeared at the Palm Beach Courthouse at 9am on Christmas Eve, having spent eight hours in custody before she was released without bond. 

She will be back in court next month to face four felonies charges and one misdemeanor: battery on a law enforcement officer, disorderly intoxication, resisting an officer with violence and two counts of corruption by threat. 

The two most serious charges, battery on a law enforcement officer and resisting arrest, are considered third-degree felonies, each punishable by a maximum of five years in prison and a $5,000 fine. 

A few hours after her court appearance, de Lesseps addressed her arrest on Twitter, writing: 'I want to offer my most sincere apologies to anyone that I might have offended with my behavior. 

'This was my first time in Palm Beach since my wedding and being here brought up buried emotions. I am committed to a transformative and hopeful 2018.' 

De Lesseps' friend Olson laughed off the suggestion the identity of the man was D'Agostino or former boyfriend Jacques Azoulay (pictured) 

De Lesseps' brush with the law comes almost a year after she tied the knot with D'Agostino at a lavish New Year's Eve ceremony inside the same venue, with Real Housewives stars Jill Zarin, Kelly Bensimon and Dorinda Medley among the 250 guests. 

The marriage, which her Bravo co-stars all said they thought was doomed from the start, was over by August and the two have since finalized their divorce. 

Friends told DailyMail.com at the time that D'Agostino grew tired of being cuckolded by his new wife who was spending more and more time with an ex-boyfriend, the wine merchant Jacques Azoulay. 

The pair dated for four years before splitting in 2013, however de Lesseps insisted she and her mulleted French ex - who is ten years her junior - were just good friends. 

'There were a lot of rumors swirling about Luann and Jacques at the time of the divorce but Tom doesn't think he was the man who was in bed with her this weekend,' added Agostino’s friend. 

He said: 'He was surprised to hear that she was in Palm Beach because she has no ties to the area and there's no reason for her to be there, neither does Jacques.'