We're going meta here... Weather in filmography is often used to depict and emphasize the characters' mood.
Rain = sad, depression, loss, as though heaven itself is crying on their behalf
So when it turns sunny after the melodrama (bonus points when there's a rainbow due to light refraction)...
Still, we should give her some slack. She's still young, and a princess to boot. She would want to have some dreams about romance. And so far she didn't actually do any harm to Cain and the other fiancees, which is very admirable of her imo.
The most noticeable part of eye bags is the discolored skin due to the blood pool, which can be easily concealed with some powder. Although from what I read, make up techniques do conceal the texture too (not just the color).