Breaking up is hard to do...

I think I have a stronger than average curiosity about the "why" behind getting deleted ....

If you haven't talked to someone In a while and don't post controversial things- mostly just cute animals and events then it cannot be due to offending them most likely. 

I realize some people delete people they haven't talked to in a while. HOWEVER. If you still have 15-25 friends in common and you KNOW they don't keep in touch with most of them either (even strictly by logic because they all have a commonality.  Like let's say it was from a roller derby league.  And that roller derby league disbanded.  And  they don't still get together ....).  Then why would you be deleted and not the others they can't possibly keep in touch with. 

And if it's because you invite people to many things .... 1.... If that's through a group you are in digitally but you have no connection there anymore.... And you are only getting invited due to remaining in that group .... One solution is to exit that group!    Another solution is to opt out of receiving invites from that person. 

So.... I'm just curious why.... Sometimes it's hard for it to not feel personal .....