James P. and Marie E. Kelly do not seem to be cohabitating these days—with him, a financial services executive, posted up in a Chelsea co-op and Ms. Kelly, a former Merill Lynch managing director, in a handsome West Village rental—which is, of course, regrettable. But to look, for a moment, at the bright side of things, the pair have just sold off a co-op at 760 Park Avenue whose deed bears both their names, according to city records. Perhaps Ms. Kelly will find herself soon enough in a more permanent arrangement of her own—if she's interested, that is. In any event, her share of the $16.55 million haul ought to cover something pretty spiffy, even in this, our era of decadence. John Burger, of Brown Harris Stevens, had the listing.