Let your homeless best friend stay with you, he said. Being roommates will be fun, he said. It's only temporary, he said.He never said I'd fall for him.You know what isn't 'temporary?' The endless stream of dirty socks in my bathroom and empty food packets under the sofa-and don't even get me started on the hot guys who take over my living room every Sunday to watch sports.I can't take anymore. So I propose a roommate agreement. One that will bring...