"What was supposed to be the happiest day of my life today has turned out to be the saddest," she added. "The last couple of days have been a rollercoaster of emotions for me."

Echevarria and real estate investor and developer Todd Nepola got engaged at the end of 2019, according to her Instagram.

Her first husband, Herman Echevarria, died in 2016 after the pair had separated, Bravo reported.

Echevarria said her mother, Nancy, "was a woman of strength and beauty" and "lived her life, HER WAY."

Her mother was a political refugee from Cuba, Echevarria wrote, who "was the kind of woman that was respected, admired, inspirational and so ahead of her times."

"A feminist and liberal with her social views. She always had an educated opinion. Her thoughts and views were so particular and unique. The crazy thing was she was always right!!" Echevarria said.

She put herself through medical school in the '60s and raised three children on her own with the help of her own mother, Echevarria said.

"To say I will miss you does no justice for what I feel, no amount of tears can express the pain I feel in losing you but then again thank you for the honor of sharing a lifetime with me. Rest In Peace Mami," Echevarria wrote. "I know you’re in a better place dancing and drinking champagne. Please watch over us, as I need all the help from up above. I now have another angel. Until we meet again."

"The Real Housewives of Miami" aired from 2011 to 2013. NBCUniversal's streaming service Peacock announced in February that the show is set to make a return on the platform. NBCUniversal is the parent company of both Peacock and NBC News.