Her Alpha or Mate

I felt that feeling of someone watching me and I knew it was my mate. I turned to see his back disappearing into the main building.

I made my way to the building and saw the halls were empty. I looked around for a bit but didn’t see him.
I gave up but then through the window of a classroom, I saw a flower on the table. I entered and picked it up. It was an Iris.

“What is this doing here?” I stared at it.

“Congratulations”

I turned around to come face to face with him, with my mate. His hair as usual was blocking part of his face, but then he ran his hand through his hair, revealing all his facial features.

He smiled at me, his teeth were pearly white. “I’ve waited for you for so long” he took a few steps forward but I took some backwards and bumped into the desk.

“I’m with him now”

“You know your destined to be with me” he held my head with both hands now, sparks erupting from both sides. He leaned in to kiss me but was yanked away into the wall.

He growled at him. “She is mine!”

My mate shook off the pain. “No, she is mine!”

***
At first she was forced to be the mate of the Alpha's son but after saving her, she begins to develop feelings for the man all the while her destined mate surfaces as his enemy. Who will she choose in the end? Her new growing love? or the one she's destined to be with?