I was a loner for some of my school life so when others had friends I always thought they would just leave and that's the one thing that was true friends never last well for me they don't.
when I finally had friends who actually "liked" me I thought everything was going to be good until I realised it was all fake they never wanted to be my friends it was more like acquaintances and not really friends it was like they were my friend when they could get something out of me.
So for me I believed friendship was a sort of deal you were friends if you could get something out of the person I never knew friendships were supposed to be out of platonic love for one another.