Saw 2 mates over Xmas havent seen them for about 5 years, may have texted them 5 or 6 times in that period and talked to them about the same.
We spent about 6 hours together each and could have probably done many hours more.
We used to see each other daily for decades nothings changed just family, age,circumstances and distance.
It's a fact of life as we get older, i've gone a year or 2 sometimes not in contact with one of my mates but when we have a conversation it could go for hours and there has always been an understanding that life can sometimes get in the way.
But most of my mates I don't even bother trying to catch up with anymore.