If your child is in the midst of a longtime friendship that is falling apart, the best thing you can do is stand by and be a good listener. It is devastating when parents see their children hurting, but taking sides or intervening isn t appropriate, nor will it help. Preadolescents do survive these hurts, especially if they know you re there to listen to their pain. Friends are people who accept us as we are. They listen, they don't needlessly criticize, they back us up when we're right, and pick us up when we're down.
People have differences of opinion and even get angry, but they still care for each other.
As parents, we must help our kids see that one problem doesn't ruin a relationship, but stubbornness might. Middle-school friends have a lot of spats and falling outs that often mend in a short time. When reprimanding, deal only with the precise problem. Don't bring in other issues. If the issue is minor, keep things light.