Isnt roxy het too since shes only liked guys and is crushing on john

It’s never been stated that she is straight. She could totally be into girls too and just not have said anything because the only girl she met up until the Betas showed up is Jane who is a straight.  She calls Jane hot frequently, is that in a friend way or a gay way, I dunno  ¯\_(ツ)_/¯ you decide that for yourself