Bethenny Frankel testified this week about her “increasingly abusive and hostile” ex-husband Jason Hoppy, who allegedly once threatened, “I’m going to ruin your life.”

The reality star is battling Jason over custody of their 8-year-old daughter Bryn. At one point, she broke down into tears explaining the abuse.

“If you leave me, you are dead to me. I want nothing to do with you,” she said Jason once told her. “He said, ‘This is war, I’m going to destroy you, I’m going to ruin your life.’”

According to Page Six, Bethenny began hyperventilating as she recalled the “outward mayhem” in the Hudson Street apartment she still shared with him after she filed for divorce.

“He would be reading children’s stories and say, ‘Mommy would be a great witch,’” she said through tears on the third day of the custody hearing in Manhattan Supreme Court. “Rotting food in the refrigerator, dishes piled to the top. He would go to the bathroom in the toilets and wouldn’t flush them. He would whistle and sing and slam doors.”

She added, “He did everything he completely and possibly could to torture me.”

Bethenny said she was forced to go to the police to report Jason following a January 2017 incident at Bryn’s school, where she’d shown up with her late boyfriend Dennis Shields: “Jason looked at us and started laughing and said, ‘I see how you want to do this. Keep playing your games,’” she recalled.

“I went to the police because I was afraid for my safety,” she continued. “My daughter was steps away, we were at a schoolyard, and if he couldn’t control himself … I didn’t know what he was capable of.”