You have to understand that people change. Even if we don't want them to change. And many times they change for the worse. I lost my childhood friends at the age of 35. People I knew since I was 8 years old. In the end, life takes away what you don't need, and many times it's a matter of accepting it and stop eating your head off. Maybe you need to let go of those friendships and find new ones. I hope I have helped you.