Oh

It's probably because he doesn't want Winston to find out she's on her period. She was pregnant with the snakes a few months before, meaning Winston already knows she had her one period of the year as all females do in this world. So if he finds out she's having it again so soon, it would mean trouble for her (not that I think he would tell anyone to begin with). But I also think since it's Curtis taking the initiative here, he doesn't want Winston to find another reason to have her as his mate because Curtis is controlling like that. ┑(￣Д ￣)┍

i see..