It's the old gay cliché about being a mama's boy, but what happens when Mommie Dearest gets a little too involved for your man's liking? Richard writes: My boyfriend is very close to his mother. Suffocatingly close. He calls her every day and they are on the phone for ages. She lives locally so comes to see us often. I discovered fairly recently that she even has her own key to the house, which caused an argument when I protested. My boyfriend says I wouldn't understand because my own relationship...