You are Reven's younger sister.

Abby: Okay, now I'm going to take your blood. Roll up your sleeve.

You look away.

Abby: Come on, roll up your sleeve.

You sigh and do it. You have scars from self-harm. Abby sees this and looks at you.

Abby: Why are you doing this? Raven knows?

You: No, and please don't tell her.

Abby: Okay… Give me your hand.

Behind the door Abby was looking at earlier, Raven is standing. She saw and heard everything.