But, Nicole was at least as awful as Chantel, probably more so. If anything, they should have apologized to each other. But, from a practical standpoint, that was never going to happen. Pedro should just accept that fact that his family is never going to get along and try to keep them separate as much as possible. But, he seems to enjoy having them fight over him.
Trying to force Chantel to apologize to Nicole, but not asking Nicole to apologize to Chantel demonstrates that he puts his sister ahead of his wife. There is a strange, almost incestuous, bond between Pedro and Nicole, that most wives would not put up with.