He's Just Not That Into You by Greg Behrendt and Liz Tuccillo Element Books $112 Single women habitually come together over coffee, cocktails or late-night phone chats to analyse at great length the behaviour of boyfriends. Sex and the City consultant Greg Behrendt and writer Liz Tuccillo are here to say that's a waste of time. Men are not complicated, although they'd like you to think they are. There are no mixed messages. If he's not asking you out, or not calling, or not having sex with you, or not marrying you, the truth is he's just not that into you. The book lays waste to some tried-and-true excuses women often let men get away with. He's just too busy to call: '100 per cent of men polled said they've never been too busy to call a woman they were really into.' He doesn't want to ruin the friendship: 'In the entire history of mankind that excuse has never ever been used by someone who actually means it.'