VIDEO : Kim Kardashian Reveals Rob & Blac Chyna Are ''Fighting Again''

In a clip from Sunday's season finale of Keeping Up With the Kardashians, Kim Kardashian reveals that her brother Rob and his fiancée Blac Chyna are "fighting again." In the episode, the Kardashians had a baby shower planned for the next day, but now that Rob and Chyna fighting, they don't know what to do. Kim then tells Khloe and Kourtney Kardashian that Rob said, "He doesn't want to celebrate a shower because this pregnancy has been really bad for him and really awful for him." The trio then decides that they should try to get Rob to come to the baby shower. The season finale of Keeping Up With the Kardashians will air Sunday at 9 p.m., on E!