Does Miley Cyrus’ short new haircut make her look too much like a guy? Is that why the writer for Yahoo! omg! referred to her as Liam Hemsworth’s fiancé?
With its one E, fiancé is a male who is engaged. The female version is fiancée — the addition of the letter E makes it a female noun. Apparently the writer didn’t study French in high school. That might explain the use of the incorrect word. But it doesn’t explain why a professional writer would use an apostrophe to form the plural of Hemsworth.