When someone walks out of your life, let them. There's no use in wasting your time on people that leave you. What you make of yourself and your future is no longer tied to them. Yeah, you may miss them. But remember that you weren't the one gave up. There's a time to let go, and a time to hold on. A time to be silent and time to be heard. A time to be confused and a time to understand. You just need to find these times. As a young teen growing up, these times are the hardest.