Similar claims were made by Deavan Clegg when she said she reached out to TLC for her issues with Jihoon Lee, and given that these folks signed on to film a reality show, it’s not too hard to believe it happened.
It’s not necessarily news that Karine Staehle threatened to divorce Paul while the two were in production for 90 Day Fiancé, but it was surprising to learn the crew arrived at his home for an unexpected filming day when Karine called them saying she wanted to divorce him.