One thing I discovered about friendship is that it is a total illusion. Go inside any jail or prison and talk to the inmates. Anyone who has been incarcerated will tell you that 99.9% of your so-called dearest friends will immediately disappear and never call, write or put money onto your commissary account.
Then as soon as you get out they want to be friends again as if nothing happened and you weren't missing for years.
I know of the hundreds of friends I had, only one contacted me in the eight years I was locked up for being poor. Several of them even had the money to have me released on day one.
Friendship is not what you think it is. It is depressingly fickle. Friendship seems to be based entirely around what you can do for the other person, and once you're incarcerated it is clear you are of no social value. It sounds like I'm being hypercynical, but that's the reality of it.