Divorce Ahead? Jim Bob & Michelle Duggar Face Crippling Marriage Problems After Josh Returns From Sex Rehab

Their eldest son, Josh Duggar, who destroyed his family's empire last summer, could be wrecking his parents' 31-year union next.

"Jim Bob believes that Josh is completely cured, and Michelle, while she would never admit it publicly, understands why some family members don't want Josh around them or their children," a source told In Touch. "It's splitting the family apart."

Since Josh's return back home from sex rehab earlier this month, Jim Bob told the family to forgive and forget Josh's mistakes and move forward as a family, a source told the publication. "It's no secret that Jim Bob usually calls the shots in the family about everything and anything that matters. But the handling of Josh's return has finally made [Michelle] speak up," the insider told In Touch.

"They rarely argue, but this one was a doozy," the source said. "He argued about putting family first and how Michelle needed to move on and put things in the past, and she stood her ground and said she was putting family first by being cautious."

"It's gotten so bad that friends think this could destroy the marriage that no one ever thought could be broken," the tipster said.