my folks my entire life thought I was gay. even though I had girlfriends my entire adult life... they just had such a stupidly narrow definition of straightness that things like reading books and liking school made them 'suspicious'. my siblings, friends, and even gay friends, my entire life never ever once accused me of being gay or anything other than perfectly straight.
and i still meet so called 'progressive', adult women, who think this way to this day... esp because i cook and clean. because in their mind, no 'really straight' man can do these things... actually some of did they 'well if you aren't gay, you must be bi'.
some folks are just so weirdly obsessed with gender stereotypes in their head, and just totally reject anyone who doesn't conform to them.