You were in complete denial, and Regulus knew it.

He watched you from afar, he never tried to hide the interest he had in you from the beginning, as for you... You tried anyone, except him. You knew better than to get involved with a Black.

From the potions table, he watched you. When class ended, he ran up to you and blocked your path, and before you could even say anything, he grabbed you by the collar.

"Other boys and girls never really made you feel right! And you can't explain why I'm always running your mind..." He smiled and moved a little closer. "Don't you see the answer's right in front of your eyes?" He asked and took you out of the hallway with him, keeping you close.

"You like me, oh, obviously!" He smiled and rolled his eyes. "So why you trying to leave when you know that I'm the king?" "You'll see..." He thought. "'Cause I'm supreme! Other lovers give you no luck... 'Cause I'm the only one that has made you fall in love!" He insisted once more and held your hands. "So just shut up!" "Choose me!" He thought, almost desperate.

Even if you denied him... He knew he already had your heart, you gave him a throne, and as a Black, he always got what he wanted.