The good girlfriend (but I was mistaken as this one has a writer and they are the artist). I think it was a good story.
The good girlfriend
https://www.mangago.zone/read-manga/good_girlfriend/
Their other work involves drugging and rape. Two bad people getting together. It’s basically idiotic hentai. I don’t recommend wasting your time with this.
Snow White is taken by the queen
https://www.mangago.zone/read-manga/prince_snow_white_is_taken_by_the_queen/
Their ending wasn’t happy though. It seems that way to the MC and maybe at first glance. However, the editor—she was insecure in her looks and settled for the first guy that gave her attention. And ex-bf is about to do the same thing—cheat (if I remember). The author I think hints at these. Their whole relationship was built with plastic and we, the audience, know it’ll break probably off screen. we know they won’t really be “happy.” (I still haven’t reread it but I think I remember that much)

When she tries- she can write good stuff. This story and and they have another one not listed here, that are good. All the other romance stories though—not my taste.