Why does this have lower ratings than roses and champagne as if their relationship wasn’...

Probably because this only has 12 chapters. The author's other work – Define the Relationship – has a high rating, even higher than RnC

True but still confusing because people can choose not to rate a story, maybe they don’t know that

Or maybe their preferences are just different from ours bcs I can see people still talk about RnC on twt from time to time