Fate brought us here

It was a simple day you were making pies and overall just relaxing, until you find a small black cat at your doorstep soaked with water. The cat turns out to be a boy, he cleans, cooks and if extremely polite it makes it hard to kick him out. Despite his nice and sweet exterior he does have his own set of problems that comes with being his friend, these issues change his personality for the worse. There's something keeping you from just cutting ties with him, there's something inside you that makes you want to help, something that keeps you attached to this mystery boy.
(warning- this story may contain some things that might trigger you such as things related to suicide, mentions of murder, abuse, etc.)