I have a couple friends who I have known for a couple years at least who have this annoying tendency to do just that. I keep asking myself what the point of regarding these people as friends is? Surely friends take an active interest in your life? I am hardly the best example of a good friend, I tend to get wrapped up in my life and can go for a couple weeks at a time with little contact but even then I manage to get together with my friends and catch up.
(If you haven’t noticed, this is just a rant!)