Asterism

I am Astoria Greengrass, a fifth year Slytherin Prefect and I'm just trying to fit in with everyone else. Making friends is hard, finding love is simply mission impossible. At least I still have my O.W.L.s and my N.E.W.T.s to look forward to. Wait a moment. Did I just see the Head Boy and another Slytherin standing a bit too close for comfort at the back of the school library?