An investigation is underway by the medical examiner's office.
Shields has had a romance with Frankel since 2016. The two dated on and off ever since.
Before entering into a relationship following Frankel's contentious divorce from ex-husband Jason Hoppy, the two knew each other for almost 30 years. "He's supporting me - he's here, which speaks for itself".
Dennis Shields, 51, was once linked to Frankel.
Now that RHONY is coming to a close, and with the reunion already having been filmed, we won't be witnessing Bethenny's reaction to the news on Bravo this season.
Co-star Ramona Singer came to Frankel's defense, at the time, stating that he was "separated" from his ex-wife.
The New York Post first reported the death.
"So Dennis, how long have you guys known each other?" she asked.
Speaking about her massive new townhouse, Bethheny said, "I may live here forever alone, and I'm okay with that". "It's like a partnership where if we're not being teammates and it's not working and one man is down, then the other man is down", according to People. I'm not saying a word to Dennis for 90 days.' It's a really hard thing to realize that someone you love, it doesn't mean they're the right person.
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