A book is sent out into the world and there is no way of fully anticipating the responses it will elicit. Consider the responses called forth by the Bible Homer Shakespeare - let alone contemporary poetry or a modern novel.
Because society places a value on masculinity gay men aspire to it. If you go to a gay club and the doorman says 'You do realise this is a gay club don't you lads?' you get all excited because you think 'Wow he thought I was straight!'