'Married at First Sight' star Jessica Castro takes restraining order out on husband Ryan De Nino

Married at First Sight stars Ryan De Nino and Jessica Castro did not get the fairy tale ending producers of the show had hoped for.

They appeared to be doing well on the show’s finale last week, even deciding to stay married after the 6-week experiment was up. This past weekend, however, De Nino posted a legal document of a restraining order that his now estranged wife filed against him.

“Unfortunately this isn't something I'd wish on anyone,” he wrote on Instagram, adding, “Why I posted this will be thoroughly explained when the times right.”

The production company told People, "We don't know all the details and can't comment on the specifics. What we can say is that unfortunately, couples on the show can go through real divorces, and divorce can often be difficult."

There were rumors that De Ninio was accused of abusing drugs on the show’s reunion, but a production source denied that was true.

"It never crossed anyone's lips," a source said. "Allegations of drug use were never raised."

Unfortunately this isn't something I'd wish on anyone. To hear and read about the forum on Thursday to come home and find this on Friday. To see the IG on Sat and see the location was enough. They say first 48 for a reason. This is another fact here's the order of protection- which had me in awe and when I read it was disgusted. Bash me all you want, say whatever it is about me just remember this board don't break for nada. Why I posted this will be thoroughly explained when the times right. #CheckMate

A photo posted by Ryan De Nino (@thatkidnino) on Jun 13, 2015 at 2:46pm
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image via Instagram from Ryan De Nino