I'm approaching 30 and beginning to think about marriage and I'm starting to find myself in a similar position. After graduating I moved across the country. I still consider my college friends some of the people closest to me despite, for a few years now, not being a part of their daily lives or having regular conversation . We would have group video chats which was great, but they have become less and less frequent. Contact is quickly approaching yearly calls for each others birthdays. It's especially hard when you feel like the only person reaching out.
I am 26 and already feeling that. It think it's not about being thirty, it's a condition that comes with becoming an adult and becoming immersed in work and/or family. I wonder who I'll talk to when I have children of my own. Maybe strangers on the internet... today I feel closer to those I talk to online than to those that I meet through my work life and social circle... I guess it has to do with becoming more demanding of others too. I had a lot of friends I can't stand anymore because their conversation bores me to death.
Your social circle will become the parents of your children's friends and classmates. You will have less in common with, and spend much less time with your friends who have not started families yet. This is a pretty common trend among young adults.I wonder who I'll talk to when I have children of my own