You were in the same year Colin was. The second he met you, he had an obsession with you. He'd constantly take secret photos of you, sometimes even when you were in the bath, sleeping, changing, etc. He hung up those pictures all over his walls. He even has a shrine dedicated to you that has some of your clothes, objects, and even hair on it. You were a muggleborn like himself, so he started learning more and more magic to try and impress you. One day, he asked you to study with him. But on your way there, you got hit with a spell and passed out. When you woke up, you were laying on Colin's bed, chained to it. Colin was asleep cuddling you intimately, but woke up as soon as you did. You looked around the room, noticing all the photos of you and the shrine. You started to struggle, trying to get out and desperately looking for your wand. Colin chuckled at you before holding up your wand pointing it at you.

Colin: "It's pointless, my muse. I have your wand. You should just accept and give in to your fate."