We all make mistakes. Your friend will eventually do or say something that will hurt your feeling. Be honest you probably have hurt their feeling in the pass. We are all imperfect and will rub someone the wrong way one day. A break in your friendship could be a small one or a large one.
To mend that break think of your favorite garment. It has developed a tear in it. You ask yourself should you repair it or throw it away? It would depend on how bad the tear is. If you really love that garment you would look for ways to repair it. In most cases this could be possible with a friendship that has been damaged. It usually depends on what has happen and how important their friendship is to you.
If any unkind word or deed was involved maybe you can overlook it and keep silent. Carefully think about it and say was this really intentional? If you are not sure remember that love covers a multitude of sins.
If you can’t overlook the matter you should talk to your friend and get their side of the story. You should not be angry when you talk to them. Cool down before you try to get the problem solved. When you talk don’t try to get back at them. You want to settle the matter and get your friendship back on track as soon as possible. Knowing what cause the problem will help.
If your friend don’t want to listen you will find comfort in knowing that you tried to get back your peaceful relationship. Proverb 18:24 says: there exists a friend sticking closer than a brother. Maybe your friend is under a lot of stress. Do what you can to help by patching up your differences. Mending your relationship would be a sign of you becoming a mature adult.