Article continues below advertisementKourtney Kardashian stands by her priorities - and Kim Kardashian doesn't seem to be one of them.During the most recent episode of The Kardashians, Kourtney ditched her sister's surprise party early to get home and b------feed her son Rocky.Kim had just graduated from her Law Office Study Program, and instead of staying through the entire event, the 46-year-old opted out after just one hour.Article continues below advertisementSource: @krisjenner/InstagramKourtney Kardashian left Kim Kardashian's graduation party early.