Grimm Season 4...I don't like the recent storyline going..

I just finished watching Grimm Season 4, episode 19.

How could Grimm creators do this to Juliette?

Juliette has been devoted and good girlfriend to Nick.

When Juliette became Hexenbiest, it was ok. I thought finally Juliette gained power and she could protect herself and not be a a burden to Nick any more.

But now you are making her a villain?

I don't like this.