Sounds like this could get interesting. So since they were married does he have a right to her cash? And any idea who she's having the affair with? Newswoman Paula Zahn has a tough question for her estranged husband: What did you do with all my money? The ex-CNN anchor sued her soon-to-be ex Richard Cohen yesterday, demanding to know what the megabucks developer did with more than $25 million she invested with him. "Were it not for the fact that Ms. Zahn and Mr. Cohen's marriage is ending, Mr. Cohen might never have been called to account for, among other things, the dubious investments he made with her money," the suit charges. The suit, filed yesterday in Manhattan Supreme Court, is the latest round of nastiness between Zahn and Cohen. Their 20-year marriage collapsed this year amid reports that the anchorwoman was seeing another business titan.