In ET’s sneak peek of the upcoming episode of "Kourtney and Kim Take New York," Kim Kardashian expresses fears that her relationship with her sisters is changing.After months of hard work, the Kardashian sisters are excited for the grand opening of their new DASH store in New York City. But when Khloe arrives and quickly pairs up with Kourtney and heads off to the store, Kim is inadvertently left behind — leaving her hurt and jealous."The fact that Kourtney and I have been working on this store by ourselves and then Khloe just waltzes in and they go leave without me as if I'm not even a part of it, really hurts my feelings," Kim vented. (ETonline.com)