I found out my sister has been doing my boyfriend behind my back, so I get even.

A little backstory first. I was born into a broken family. My father was an addict.

My mother, on the other hand, was the kindest, strongest woman I know.

Fortunately, they separated just after the birth of my youngest sister,

who was only younger than me by a year. I took after my mother.

My sister, though, apart from my mother's looks, she got everything else from dad.

Now, the thing is, my father was a horrible person. Even before he became an addict,

he was an arrogant, selfish, insufferable jerk. And not only that,

he cheated on my mother multiple times while she was pregnant with me and my sister,

and he also physically hurt her. He was so horrible to the point that when he left,

my mother said that it was the happiest day of her life. She continued raising us all by herself,

while my dad went to God knows where. And you know what? I have never even missed him.

18 years later, and me and my sister all grown up, and the thing is, we've never really been that

close. We fought a lot when we were younger, but it was all usual sibling fights. As we grew,

we fought less and less, and we were able to co-exist like all siblings do,

though I didn't express it all the time. I did love her.

Here's where it all goes, hey, wire. In my senior year of high school, I started dating one of my

classmates. He had just transferred during that year and said that he liked me immediately,

and asked me to go out with him if I was interested. I gave the guy a chance. It goes extremely well,

and just two months later, we were officially dating. He was sweet, would treat me to lunch,

take me to places, and was just a great boyfriend overall. We continued to date through our first and

second year of college, and he comes over to our house pretty frequently, even my mom lets him

...