ShitSexual is when you make non-existing sexualities hat invalidates the LGBTQ+ community, for example the animesexual shit (ShitSexual is not part of the LGBTQ+)
Shysexual is a person who thinks about sex 24/7 and imagines getting dick & pussy but, when actually confronted by someone willing to have sex with them or admitting their true feelings about sex shysexual will go into a social anxiety attack and not do what they really want to do because they're shy af.