It's funny how it takes so long to realise it sometimes. Many friends drain you, they take and hardly give but with the initial flow and dynamic it seems normal and you're okay with it. In retrospect however you realise just how much you didn't get from the person you expected to reciprocate your gestures.

I also am guilty for projecting an image of the friend I desire unto people, until I realise they are nothing like that person in my head. Many don't realise you have to put effort into picking your friends, and make sure you feel valued while giving value as well.