Dorinda Medley grieves as Dorobics co-creator Jon Giswold dies

Dorinda Medley is grieving the loss of her ‘dear friend’ Jon Giswold who died on Sunday.

The 55-year-old Bravo star took to Instagram to share a touching tribute to her long time pal, saying she was ‘devastated’ by his passing, in a post on Monday.

Along with being close confidants, Giswold and Medley had worked together to create her popular 80s themed workout class, Dorobics. 

Sad news: Dorinda Medley is grieving the loss of her ‘dear friend’ Jon Giswold who died on Sunday in a heartbreaking Instagram tribute

‘I am devastated to let you know my dear friend Jon Giswold passed away yesterday,’ Dorinda penned in a sad Instagram message.

She shared two images that seemed to encapsulate her friendship with Jon, showing them both smiling and goofing around together.

‘Friendships are like homes, some of it is superficial and pretty and some are a part of your foundation. John [sic] was my ride or die, my 5:30 in the morning FaceTime, my thoughts and dreams person, my Dorobics buddy, My Forever Friend,’ Dorinda wrote in the caption.

She continued: ‘I will miss you dearly and smile every time I see a rainbow, hear Donna Summers on the radio, and wake up too early in the morning. 

'Friendships are like homes, some of it is superficial and pretty and some are a part of your foundation. John [sic] was my ride or die, my 5:30 in the morning FaceTime, my thoughts and dreams person, my Dorobics buddy, My Forever Friend,' Dorinda wrote in the caption.

‘Friendships are like homes, some of it is superficial and pretty and some are a part of your foundation. John [sic] was my ride or die, my 5:30 in the morning FaceTime, my thoughts and dreams person, my Dorobics buddy, My Forever Friend,’ Dorinda wrote in the caption.

'I will miss you dearly and smile every time I see a rainbow, hear Donna Summers on the radio, and wake up too early in the morning. I Love You John [sic] Giswold. Dancing in Heaven. The world is a little less without you in it.#oneofakind #myfriend #rip #¿¿'

‘I will miss you dearly and smile every time I see a rainbow, hear Donna Summers on the radio, and wake up too early in the morning. I Love You John [sic] Giswold. Dancing in Heaven. The world is a little less without you in it.#oneofakind #myfriend #rip #❤️’

‘I Love You John [sic] Giswold. Dancing in Heaven. The world is a little less without you in it.#oneofakind #myfriend #rip #❤️’

Along with the photos with Jon, Dorinda also posted a picture of a crucifix at the front of a church. 

Bravo fans will likely recognize Giswold, an author, designer, podcaster and knitter, from his occasional appearances on the Real Housewives of New York.

He also helped Dorinda conceptualize her high-octane retro aerobics class, Dorobics. 

Best friends: Bravo fans will likely recognize Giswold, an author, designer, podcaster and knitter, from his occasional appearances on the Real Housewives of New York and as the person who helped Dorinda create Dorobics

Best friends: Bravo fans will likely recognize Giswold, an author, designer, podcaster and knitter, from his occasional appearances on the Real Housewives of New York and as the person who helped Dorinda create Dorobics

Jon hosted two podcasts, a philosophical themed on called Moments that Matter and one focused on his beloved hobby of knitting, called Knit in the Pit. 

Just a few days ago, Dorinda tagged Jon in a funny Tweet about the infamous knitted afghan from the Rosanne sitcom.

It’s unclear how the entrepreneur died but it appears that his passing was unexpected.

Two days before he died, Jon shared a happy-go-lucky selfie with a poignant caption. 

Shock: Jon's cause of death has not been revealed but it appeared to have been sudden as just a few days ago, Dorinda tagged him in a funny Tweet about the infamous knitted afghan from the Rosanne sitcom

Shock: Jon’s cause of death has not been revealed but it appeared to have been sudden as just a few days ago, Dorinda tagged him in a funny Tweet about the infamous knitted afghan from the Rosanne sitcom

His final Instagram: 'One Summer Day that felt relaxed,' he wrote. 'No attachments. Let Go and let summer BE.... #summer #chill #letgo'

His final Instagram: ‘One Summer Day that felt relaxed,’ he wrote. ‘No attachments. Let Go and let summer BE…. #summer #chill #letgo’

‘One Summer Day that felt relaxed,’ he wrote. ‘No attachments. Let Go and let summer BE…. #summer #chill #letgo’

And, his Knit in the Pit Instagram handle shared a photo of yarn just a day prior to his passing. 

Meanwhile, Dorinda is currently starring in season 12 of the RHONY which airs Thursday nights on Bravo. 

Tune in: Meanwhile, Dorinda is currently starring in season 12 of the RHONY which airs Thursday nights on Bravo (Pictured in February)

Tune in: Meanwhile, Dorinda is currently starring in season 12 of the RHONY which airs Thursday nights on Bravo (Pictured in February)