Bound 2” concerning herself with Kanye West’s shenanigans — including his recent Italian wardrobe malfunction.The Skims founder does not keep up with her ex-husband’s personal life and isn’t “concerned” unless it affects him co-parenting their four kids, a source told TMZ on Wednesday. After West exposed his bare butt to tourists during a boat ride in Italy on Sunday, a source close to the situation told Page Six that previous reports about Kardashian, 42, being “desperately embarrassed and worried” for West, 46, are not true.Kardashian’s camp declined to comment when contacted by The Post.