Help me? (Karina x fem reader)

You can probably tell from the title what the story is gonna be like, basically angst with happy ending. I love angst a lot, its what attracts me to a story honestly but some of the stories ended up having a sad and not satisfying ending. So im gonna write what I would have wanted to read. Also im not gonna be writing smut cuz I don't like it, there might be some steamy scenes but not like smut. I would also like to tell the readers that the first few parts of this book are heavily inspired by a story called fake dating|h. granger written by emmawatsonismywife. I read that story and it was incredible at first but the ending kinda wasn't satisfying for me, so other than the first few chapters the rest is original from me. Anyways, enjoy the rollercoaster knowing that everything is gonna be fine in the end. ;)