What is Friendship?

I honestly used to think that friends were more like a family, that if one was in trouble the whole group would band together and help you out, that is how i have always tried to be with my friends, if they needed money, a place to stay or even if they needed a shoulder to cry on a friend is always there to give that support and to the best of my ability even if i had fallen out with that person i had tried to be there for them because that is what a friend is.....isnt it??

This however seems to not be te case as i have found recently, people who i thought were my friends really dont seem to be that interested unless there is something in it for them, or is this what a friendship is?? have i been wrong this whole time because that is exactly how i am feeling right now.

I found myself laid awake at night wondering if i should give a shit and if it really does matter. or should i just tell them to fuck off

Very confusing
Very tired
Very Pissed off
Very Late for work lol