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!'
We are used to female writers who use their private lives as unmitigated material being somewhat hormonal this somehow 'excuses' what might be seen as a highly unfeminine ability to turn their personal upsets into money.
