The reason that I've lost so many friendships in the past decade is exactly what you're saying: friendships are not a priority for the average person who is gainfully employed, married with kids, maybe has pets, and also has social obligations to their relatives.

For someone in your position, maintaining friendships is always going to be the lowest priority item, on a neverending list of responsibilities and social expectations.

That's one thing that frustrates me about American society. People who are married with kids are insanely busy, with a robust and built-in social network, whether it's through interactions with relatives, or even making friends with other parents through sporting events, etc.

It's tough for the rest of us. Obviously there is no quick fix to this problem, but for now I'm able to fill some social needs through meetups and other social events. I'll probably also get a pet eventually.