Real psychological test

[Suiteness]

It's the story of some broad.

At her mother's funeral, she notices a young man that she's never met before. The guy's wicked hot, THE one, the guy she always dreamed of. It's love at first sight and he's all she can think about. A few days later, our girl kills her sister.

Question: Why did she kill her sister?


I'll post the answer in a bit.