And then she frowned, and shook her head, then put her arms around him once more, pressing her face into his shoulder, making a noise that sounded almost like rage. 'What's up?' he asked. 'Nothing. Oh, nothing. Just...' She looked up at him. 'I thought I'd finally got rid of you.' 'I don't think you can.' he said
David NichollsFrom an evolutionary point of view, most emotions - fear, desire, anger - serve some practical purpose, but nostalgia is a useless, futile thing because it is a longing for something that is permanently lost . . . .
David Nicholls