Why the hell is Kim Kardashian rolling solo at New York Fashion Week?! She and Kanye are expecting their third child together -- via surrogate -- and heck, Kanye IS a fashion designer ... why doesn't he want to be with his wife in New York, taking in the creative energy and being around the thing he loves the most -- clothes!

Instead, we caught up with Kanye Friday at his Calabasas office, working with another dude on who knows what -- so maybe he's got some big, important secret project going on? So Kim is strutting her blonde Cher hair in New York and hanging out with Scott Disick -- and she's looking a little, well, stoic. Why aren't these two together, with huge smiles on their faces, ecstatic with the thought of becoming third-time parents? Is there trouble in paradise?