05/09/2013 at 01:00 PM EDT
When Bethenny Frankel
filed for divorce in December, she vowed to herself – and to fans – that she and Jason Hoppy would keep their split amicable.
But it didn't take long for their situation to devolve
. Now, months later, the duo, who are parents to daughter Bryn, 3
, are still living together in the same N.Y.C. apartment – even as they continue to hash out their differences in court.
"My living situation is very, very stressful," Frankel, 41, tells PEOPLE in the new issue, on stands Friday. "I don't think it's very healthy for anyone involved. It's very upsetting. You just have to endure it."
But because it hasn't been decided who will get the home, they both have a right to live there and so they do.
Hoppy (who declined to comment for the story) has also continued wearing his wedding ring in public, a decision that Frankel finds both irksome and baffling. "It's an interesting choice," she says, diplomatically. "And I don't understand it."
Now, as Frankel and Hoppy continue to argue over assets, custody (they're both asking for primary custody of Bryn) and the rights to the home, Frankel says they're artfully avoiding each other and focusing their attention on their daughter.
"I can't believe I don't get to be with her every day," Frankel says. "And yet, when we were together, all three of us, the dynamic wasn't good. It wasn't healthy. That energy wasn't good for her to be around."