Looking for a fic I’ve read a while ago

Hello! I'm looking for a fic that I read a while ago with Hermione pining. I think Draco and Hermione worked together and Draco was dating a Muggle woman (and was on the verge of proposing to her I think?!).
There was a gala and Hermione believed that Draco might have feelings for her too. However, she saw him with the other woman possibly because he was trying to make Hermione jealous. I remember Hermione running away afterward.
Sorry for the messy explanation that's the only part I can remember!😬