Buy a gift for a dog, and you'll be amazed at the way it will dance and swerve its tail, but if don't have anything to offer to it, it won't even recognize your arrival; such are the attributes of fake friends.
The shame that tormented me was all the more corrosive for having no very clear origin: I didn't know why I felt so tainted, and worthless, and wrong-only that I did, and whenever I looked up from my books I was swamped by slimy waters rushing in from all sides.