“If David isn’t interested in me, then I don’t understand why he’s spending all this time with me,” said Allison, an attractive, smart friend in her twenties. Allison had every reason to be confused. Her “friend” David was hanging out with her, confiding in her, and he often flattered her. But at the same time, he could be aloof, he’d never even held her hand, and he only spent time with her when it was convenient for him – basically, he was doing just enough to lead her on.