I had a friend a few years back. She travels for work a lot. We couldn't get together that often, but I loved hanging out with her. But as time went on, I realized that the friendship was very one sided. She would say she would text me, then never would. I would text her, and she wouldn't respond. We would make plans, and she would cancel for what I felt were not valid reasons. I finally realized that she just didn't want to be friends anymore. I still don't know why. So I had to let it go. It was hard, and it hurt, but it was the right thing to do.