It's like we always say: The family that works out together, stays together! Although in this case, we may have been proven wrong!
Rob allegedly left Europe right before Kim and Kanye West's wedding because he didn't want to be photographed with the rest of the family, and they apparently haven't really been in contact since!
It's too bad things didn't work out, because it definitely looks like Kim and Khloe wanted to help Rob reach his weight loss goal and it seemed like they were having a fun time doing it! Hopefully they'll have more exercise playdates in the near future!
[Image via WENN.]