"Living my best life!" Danielle Staub wrote, just four days after she finalized her divorce

Danielle Staub is living her best life after finalizing her divorce from Marty Caffrey.

Just four days after Staub, 56, and Caffrey officially ended their contentious marriage, the Real Housewives of New Jersey locked lips with a mystery man while in paradise.

To kick off the week, Staub shared a photo of herself kissing a man on Nikki Beach in St. Barth in front of a rainbow.

“Mystery solved #photocredit @berangeresbh,” she captioned the Instagram post on Monday.

Although Staub hasn’t revealed the identity of her new boyfriend to fans, the couple is already serious.

“We fell in love,” she tells PEOPLE.

According to a source, Staub’s new man is New York-based Oliver Maier. Maier is a businessman who works in private equity/venture capital and owns vineyards and other business.

Hours before she shared the smooching snap, she posted an image of herself soaking up the sun while lounging poolside.

“Living my best life! In #stbarths @chevalblancstbarth merci beaucoup,” she wrote, confirming that she’s doing great post-divorce.

Danielle Staub

Last week, Staub and Caffrey finalized their divorce, PEOPLE confirmed. They began dating in April 2016 and wed in May 2018 in a Bahamas beach ceremony aired on the Bravo show.

On Thursday, they both appeared before a judge in a Bergen County court. The hearing, which began at 9 a.m. and lasted for less than an hour, saw both agreeing to an uncontested split. She will have to vacate the $2.15 million house they’re still living in together in April, unless she buys it (and all of the furniture inside it), in which case Caffrey will leave immediately.

A rep for Staub said the reality star is glad to have the troubled times behind her now that her divorce has been finalized.

“Danielle is very much looking forward to moving on to the next chapter of her life and is excited to see what that will look like,” Staub’s spokesperson, Steve Honig, told PEOPLE. “She is incredibly grateful for all the support she has received from her children, family and friends.”

Caffrey, meanwhile, told PEOPLE in a statement that he felt bittersweet.

“Now that the divorce is final, I feel great relief as well as sadness,” the businessman said. “Relief comes as I have finally reached the end of the twisted road I was dragged down. I am looking forward to moving on in life with my supportive and loving family and friends around me. However, Danielle and I did fall in love, and it is sad to part from each other this way after experiencing something special together.”

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“Looking back on our relationship, it is hard to reconcile that the camera and the show were more important to her than her relationship was with me,” Caffrey continued in his statement. “I do think the show led to the destruction of our relationship. I would caution any man who contemplates getting involved with a ‘real housewife’ as I think it takes a special kind of person to expose their private lives in this way and not have it not cause problems. However, I have no regrets about supporting Danielle, and vigorously defending her throughout the last two seasons of The Real Housewives of New Jersey. I bear her no ill will, and I wish her the best in everything she does.”

Though Thursday’s proceedings were mostly peaceful, Staub’s attorney did request to file a motion against Caffrey to hold him in contempt of court. If accepted, he will have to return for a separate hearing.

Still, this is hopefully the end of the heated back and forth the pair have been involved in since Caffrey filed for divorce in August.