For the last hour and a half we’ve all been sitting in the dark, gazing up at the couple on the screen, willing them to admit they’re crazy about each other. At last, the leading man leans in, the leading lady melts into his arms, finally their lips meet…and we in the audience collectively sigh… Zac (Richard Gere) kissing Paula (Debra Winger) as he sweeps her up into his arms and carries her out of the factory in ‘Officer and a Gentleman,’ Sam (Patrick Swayze) kissing Molly (