Iris watched Fallon, and nodded. "Well... Yeah. I know about you and Finn." Oooookay. This could get very awkward, very quickly. "I mean... well... I suspected that something was going on months ago; that night when you got back to the common room really late. Lost track of time? That's not like you. And, well... the only time I ever lose track of time is when I'm with Aaron... so... yeah."

But that was only the start, really. Because, obviously Iris got no actual confirmation from that night. She shuffled, somewhat uncomfortably. "But... um... Well... I actually found out... um... just before. On the pathways near the Groundskeeper's Hut..." Now it was Iris's turn to feel uncomfortably horrible. "I was heading towards the castle, and you and Finn were going... somewhere else. I was kinda shocked, but I figured walking right into you two would've been too awkward." More awkward shuffling. Iris looked down at her feet. "So I jumped behind a bush and cast a Disillusionment charm over myself so I could get away."

The Head Girl nodded, in a way that ended her story. So... yeah. That's how she found out. Ooh. This was awkward.