I don't even get gender really
like what is it
cus we've got tons of people saying it isn't a result of your body parts
then we've got just as many if not more, saying that gender roles shouldn't exist
so then... what's left? what's the difference between a boy or a girl, if it's not their love organs, or how they behave or look or dress or whatever?
Having gender roles would be assigning genders (and their corresponding "roles") based on one's love.
Gender is how masculine or feminine you portray yourself and feel psychologically. I guess the easiest way of differentiating them is that being "feminine" is closer to what is traditionally associated with women, whereas being "masculine" is just what is traditionally associated with men, but that's just defining things in a circular manner.
Either way, you can have gender without gender roles.