The dark side of the Star

Hate-love-hate-loathing? Yup, that's the history of Sirius and Vivian, at the moment. Can future be a bit less turbulent?The story is sort of a sequel of Not Just Another Brick In The Wall, but you don't have to read it to be able to understand this one. This story starts during the summer between Harry's fourth and fifth year and it might get AU-ish with later chapters.