Anyone lose a friend, and then decide you didn't want to try and get them back?

Has anyone lost a friend, and then decided later on you would not try to get back with them? I lost a friend years ago who just sort of drifted away and I did not fight to keep her in my life, or try to contact her or anything. I still feel I did the right thing in not contacting her. But I want to know if anyone else has been this way too.