You had just found out that your boyfriend Klaus cheated on you with Isadora.

You only had forgiven him for two reasons.

He admitted to it the next today, feeling really guilty.

And because he said you can cheat on him too.

He said he wanted you to go all the way, and he didn't care who it was.

So, you went to go find Duncan. He was the only boy at prufrock prep that you trusted enough to have sex with, other than Klaus of course.

So, you went to the library, and looked around for Duncan.