Not the one you're waiting for . . .   Jeffrey Bornic is getting over his ex. Really. So what if the rising-star attorney is angrily sleeping his way through most of Manhattan's male population? When the time is right, the perfect partner will show up. And Jeffrey knows exactly what he'll be like: an ambitious, polished professional who'll make the ideal other half of a fabulous power couple.   Theo McPherson is definitely not that guy. He's a short, fiery red-head who works in the arts and wears sneakers held together with duct tape. If it weren't for the fact that Theo is his best friend's little (literally) brother, Jeff would be crossing the street to avoid him. Theo, meanwhile, has nothing but contempt for guys in suits, and seems to have deliberately set out to make Jeff's life miserable, all while grinning at him in that exasperating--some might say irresistible--way that he has.   At least it's hard for Jeff to keep moping over his ex when he's butting heads with Theo--and suddenly wondering if the last guy he'd ever fall for might be exactly that . . .