Have you ever had a friend that changed completely?

Yes, Yes and Yes!!! Fortunately or unfortunately you will meet or cross paths with people all your life. Some people come into your life only for specific needs or purposes for a certain time, then when that purpose has been fulfilled, either you or the friend move on - - And IT IS PAINFUL - - at times. You have to learn to be thankful for the time you had together, grieve for the loss of friendship if you must then push on. This IS Life.

Yeah my best friend in middle school. In 8th grade she turned into a total backstabber. I think she was jealous because she was kinda fat and never had a boyfriend. Also she's a soulless ginger, so I should've seen it coming tbh.

For worse..

Yes