Jonathan captioned the picture, "I love the ocean in the most pure way I know. It's vast and deep and beautiful. When I'm on it I'm free, and when I'm in it I'm home. When life gets chaotic, it calms me. It's beautiful and balanced, yet relentless and powerful."
He concluded, "I am my most happy and content self when surrounded by the ocean. So you must understand, it's not the blue of ocean I see in your eyes. It's love, pure love. @dr.jessicagriffin."
Jonathan confirmed he's in a relationship with Jessica in late August, but dating speculation had begun circulating several months prior, fueled by the pair's social-media activity.
One Married at First Sight fan, for example, tweeted in July claiming she had just spotted the pair kissing in Sandwich, MA, a Cape Cod town. Jonathan and Jessica had also taken hikes together and even participated in a Spartan race.
Jon married Molly Duff on Married at First Sight's sixth season, which taped in Boston late last summer and fall and aired on Lifetime earlier this year; however, the couple decided to divorce at the end of the eight-week experiment.
The finale aired in April 2018, but Molly called it quits on their romance well before "Decision Day."
Given Jessica served as a marriage counselor or therapist for Jonathan and Molly onMarried at First Sight, both individuals have felt the need to defend their romance against critics arguing on social media it's "ethically dubious" and "against the rules."
One woman, for instance, wrote Jessica and Jon's relationship "speaks poorly on [Jessica]'s profession."
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While Jonathan addressed the alleged uneducated and unresearched remarks on social media, Jessica shared a May 1 blog post on her drjessica.com website titled, "Why I Said Yes to Television," that touched on the subject.
"At no point should the role I (or others) provide be construed as replacing actual therapy. We are NOT individuals' or couples' therapists on these television shows or in real life," Jessica explained of her dynamic with Married at First Sight and Seven Year Switch cast members.
"We do not have a client/therapist or doctor/patient relationship at any point during production or any point, period. Outside companies are hired to conduct the psychological evaluations of cast members."
Jessica concluded in her blog post, "My role that I am hired to do as a 'Relationship Expert' is to provide consultation to the cast of a television show and consultation to production on topics that fall within my expertise."