I was in the same type of situation. I had a best friend since 8th grade. I moved to Tennessee and she moved to Florida. We stayed in contact by phone. Then we would meet up during the holidays in our birth state. Well she stopped replying to my text messages. I left her phone messages too. Months later she surfaced and said she had a lot going on. I explained to her that I would have liked her to at least let me know she was alive. She apologized and agreed. Well she started doing it again not replying to messages. During this time I was just diagnosed and was having a really hard time. I did not have time for flaky friends. We never had bad words toward each other. She stopped calling me and I stopped trying to reach her. This ended in 2012 and I'm ok with it.

I moved from Tennessee back to Oklahoma. The college alumni friends I had are flaky too. I do not hear from them. There have been tornados in Oklahoma and they don't even call or text to see if I'm ok. I just don't call them anymore either. Out of sight out of mind