The Bravo star, who left RHONJ in 2010, recently announced her engagement to her boyfriend, Joseph Masalta, and the two are set to get married in 2016, according to In Touch magazine.
"I am thrilled to be engaged to Joseph, he is an extraordinary and honorable man, and I'm happier than I've ever been in my life," Staub told In Touch, adding, "We are happy, peaceful and grateful to spend the rest of our lives together."
The engagement has blindsided Staub fans, considering there is nary a trace of Masalta on any of Staub's social media, which can be attributed to Staub's conscious decision to take a step back from the limelight.
"My children are everything to me and they needed their mom, so I decided to take some time off to focus on my family," she shared.
So who is this mystery man who's swept the controversial RHONJ star off her feet? Here's what we know.
A Navy SEAL special warfare and intelligence expert, more specifically. Masalta was a SEAL for 16 years, according to In Touch, and served on SEAL Team One, SEAL Team Three, Naval Special Warfare Group One and he also led maritime anti-piracy security details in the Arabian Sea and protection detail missions in the Middle East. His active duty was from 1989 to 2005.
We bet Andy Cohen would have loved to have him around for a couple of the reunion specials.
After the attacks, Masalta requested to be put in SEAL Team Three so he could mentor and train new SEALs in "the unit-level skills sets required of Navy SEAL operators in combat," according to his company's website.
After retiring from the military, Masalta founded Masalta International, Inc., which serves as a parent company for several other ventures, including Tactical SEAL Adventures, which hosts team-building events for other companies.
During his time in the military, Masalta was a freefall parachute instructor in the Military Freefall School and certified 6,000 military personnel with combat-level skydiving skills, according to the Tactical SEAL Adventures website. He also served on the Navy Parachute Team and was the only military freefall jumpmaster during his tenure.
Now, his company offers skydiving as one of the team-building event options.
Masalta has two children, so with the blending of families, the Masalta-Staub clan will grow to a party of six.
Masalta supports a variety of philanthropic organizations, including the Boys & Girls Clubs of America, and he actually met Staub at a charity event.
Most of Masalta's team-building philosophy involves challenging his participants physically and he also delivers motivational speeches to help people gain the focus to fight for fitness in their personal lives. He believes fitness can help build stronger communities, according to an article about him in a local paper, The Mercury Lifestyle.
"Danielle is the most beautiful woman I've ever met in my life, inside and out, and I am head-over-heels in love with her," he told In Touch.
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