One of the aspects of an astrological chart is an opposition. This occurs when two planets are 180 degrees from each other - on opposite sides of a chart. This is a classic conflict position. Two opponents on each side of a football field or boxing ring. In astrology an opposition creates tension, and from that tension comes potential for creation and action. They are like a rubber band pulled taut, waiting to be released.
The bottom line is that I feel it is important to be honest about why we participate in conflict for conflict's sake. We can have people in our lives we butt heads with because it works for us. The trick is to not be a victim in the process. Keep playing the game if you like it or walk away if it no longer works for you.