"I think people need to talk things out in a relationship so you are on the same page....always being honest but at the same time not trying to deliberately hurt feelings in any way."
That not only helps the couple, that helps the couple's children as well. The Fifth Commandment says to "Honor thy father and thy mother", which means you can't ignore or disrespect them both, and it also means that you can't play favorites. Parents make it harder for their children to obey The Fifth Commandment when they fail to present a unified front.
