Summarize this article:

Sometimes, it's easy to overreact when you feel threatened or insecure in your friendship. Talking to someone you trust who isn't involved in your friendship can help you get your feelings and frustration out before you start an argument. Your parents and teachers were young once, too, and they have probably been through something similar and can give you advice on how to handle the problem. If your friend is stolen from you, that doesn't mean that they don't like you anymore. Say "Hi" when you see them, and ask them how things are. You might even want to text them to tell them that you miss them, and if they respond positively, invite them to hang out. Sometimes, a new friend can feel exciting, but that excitement can wear off in a few weeks. Try not to hold a grudge against your best friend for making a new friend, and forgive them by welcoming them back as your friend. with new people. If your conversations didn't go so well, you might want to start making new friends to take your mind off of the old problems. New friends can help remind you that there are plenty of fish in the sea, and you can learn new things from them. You might just find that your new friends are much better for you.

Summary:
Talk to a parent or teacher about how you're feeling. Reach out to your friend to let them know you're thinking about them. Work on making friends