I have had a very dear friend since we were age 12 (both now 74). She lives in my hometown in the States, but we have always stayed in touch, although I have moved many times (different states in the US, and then me moving to England 27 years ago.) Used to be letters, then emails, now Whatsapp free phone calls. She has always been as many of you have described. If I get in touch, she is so happy to hear from me and we can talk for at least an hour on the phone. She asks about my children and grandchildren, so it is not one-sided. She is married, coming up to 50 years, and will share her family's activities etc. Over the years, I have been so frustrated at her inability to make the first move, but many years ago, an agony aunt in the paper was responding to a similar issue and she advised to ask yourself this question: Is my life improved by having her in it, or not. Then act accordingly. I have reminded myself of that many times, and the answer is always that my life is much happier with her in it, not least because we share so much personal history (to say nothing experiencing historical events that have shaped our lives.) So I can't say I rush to the phone very often these days, but three or fours times a year, I make the call and end up feeling good, usually laughing, and very much like I am actually lucky to still have her as a friend.