I read it not too long ago.

It was a Harry Potter x Hermione with tropes and a soul bond as I recall.

The main thing I remember was that the soul bond was kept secret.

And toward the end of the story Ginny found out that Harry and Hermione were married, but didn’t know they had a soul bond.

So, Ginny brewed a potion.

This special potion had a Latin name and was brewed under the full moon.

It would turn any love a drinker had for a person into hatred.

Also, if drank, the effects are permanent.

In the story, brewing this potion was punishable by going to prison in azkaban.

There was a trial scene and everything.

Harry never ended up drinking the potion.

Dobby had heard Ginny talking about it and warned them.