'try to pickup' - totally hear you on the voicemail thing. If you're consistently too busy to take any calls from any social contacts, you're too busy to have a deep friendship anyway. We can still be friends, but never having real substantial conversations is going to he a limiting factor on how deep that goes.

If you're married, of course you should prioritize your immediate family - a lot of people get more distance on existing social relationships or lose track of friends at that stage of life for that reason. It's not really a bad thing, it is what it is - the loss of an active friendship.