She put a ring on it — but he won't take it off.

Almost six months after Bethenny Frankel filed for divorce from Jason Hoppy, the pharmaceutical sales executive is still wearing his wedding band. Why? He's vowed not to take it off until the marriage is officially over, Breaking Celebrity News has been told.

"Jason won't take off his wedding ring until the divorce is final. He didn't want to pull the plug on the relationship, but Bethenny decided to file for divorce," a source close to the situation revealed.

What's more, Hoppy is "disgusted" that the talk show host has a new boyfriend, billionaire Warren Lichtenstein, before the split is even official.

"Jason refuses to even entertain the idea of dating and he's disgusted that Behtenny has a new boyfriend," the source said.

"The fact that Bethenny has taken their daughter on vacation with Warren in the past is outrageous to him. What kind of role model is Bethenny going to be to Bryn? The parenting choices she is making are very poor.