in the last few years my friends and I grew older and (possibly, but a little unlikely) wiser, but not without growing apart. I was losing friends the way I lose change in my pockets. With each friend, I asked myself what I had done wrong. I felt sad.
Until one day my sister told me, "it's okay" and gave me an advice which helped me see everything from a new angle.
She said something along the lines of this:
It's okay to lose friends. It's okay to feel sad. I don't think we're supposed to live and die with the same people. I think there's a time and a place for the people we meet; and it's okay if that person doesn't stay in our lives for a long time. Maybe we'll see them down the road. It won't be the same as when we first knew them, but that's okay.