I have two close friends who I now barely hear from
Friend one - moved continents six years ago but always kept in touch and went on holidays until just over a year ago. Known her ten years.
Friend two - a platonic male friend of twenty years who lives in another country. I visit once a year but he hardly ever reciprocates. He hasn't replied in four months.
In the last year, I've lost a friend to cancer, changed jobs and started a new relationship. And have supposed good friends who know nothing about it.
I hadn't heard from friend one in a year when she reappeared at Christmas wanting to meet. We met for one evening and I haven't heard from her since and it makes me sad.
YABU - good friends are good friends - doesn't matter how much time passes
YANBU - good friends should keep in touch more often