Your wife gets really into something, and you pull back from it. You start to feel very strongly about something, and she starts to move the other direction on the issue. It can be anything, and the more extreme one of you goes in a particular direction, the more likely it is the other will go as far or further in the opposite direction in an attempt to balance things out. If this becomes a vicious cycle you can end up diametrically opposed to something neither you felt strongly about in the past.
First, be on the lookout for this dynamic. If you see yourself doing it, think carefully and pull back to a reasonable place. If you see your wife doing it, examine yourself and see if you’re doing anything to give her reason to think she needs to balance you.