Kerry,
I can relate. People change. Friendships change. I have tried to hold onto friends but realize that they don’t want to hold onto me. I have distanced myself from friends because their lives moved in a different direction or that their behavior/attitudes/etc. have diverged from mine.
Life is not static.
I get both sad and angry from those past friends that decide that they are no longer my friend.
First and foremost I would love myself and accept that some people are not meant to stay as friends.
Mark