Nezuko x Female reader

Hi, my name is y/n (your name) y/l/n (your last name) and I'm a demon slayer as well as half demon.
I have been friends with Nezuko kamado ever since we were 7. But honestly, I think of her as my crush. I usually think of what it would be like to be her girlfriend, but I know that her brother, Tanjiro Kamado, wouldn't allow us to date. I don't personally know Tanjiro but Nezuko usually talks about him and how good of a brother he is. To be honest I'm a little jealous of her. She is beautiful, kind, loving, and...did I say beautiful? Anyways I'm also jealous of her because she has a family. Yes, you read it right I have no family, they were killed when I was 7. And that's how I and Nezuko meet. Tanjiro probably doesn't know about me.