Regulus x Marissa(OC)

Everyone saw me as perfect, I always had been my whole life. I was Regulus Black, I was raised to be perfect. I was everything that my parents wanted me to be. Pureblood, Slytherin, and the opposite of my brother.
My brother was Sirius Black, known as the heart throb of Hogwarts. My parents hated him. He had been sorted into Gryffindor. He had been set free. I have always been jealous of him, he isn't stuck being controlled. He has forgotten about me, moved on completely. He once promised me that we would both escape together, but he broke it. How could I forgive him for that? He ran away over the summer and left me there.
"Sorry." I was pulled out of my thoughts when I heard that oh so beautiful voice.
"Sorry Marisa, I didn't mean to bump into you!" Some random kid who I didn't know exclaimed.
"It was my fault, I should have been more careful." Marisa smiled. My heart skipped a beat at the sight of it.
Marisa was a Hufflepuff, and she was one of the most popular girls in the school. She was in the year just above me. She was another one of Sirius' friends. She is also the girl I've had a crush on since third year, but I've never even spoken to her.

The harry potter world belongs to J.K. Rowling unfortunately