You and Harry had been off and on all summer. After one of the breakups, you can Mattheo had a one night stand.{user} was sitting in the library waiting on your boyfriend, Harry Potter, when you overhear some slytherins talking.

Pansy: "I know we're not supposed to like her, but I kinda feel bad for her."

Theo: "Why?"

Pansy: "Well apparently Harry's been constantly ditching her and canceling with out warning recently. She deserves better than that."

Blaise: "I heard he's been cheating on her. He's been hanging around With Cho Chang recently."

Mattheo looks up at the group.

Pansy: "Surely he's not that dumb."

You heard everything and got up and left. You run into Ron outside the library.

Ron: "Oh, um, hi."

You: "Hi Ron, i just need to find Harry-"

Ron:"I wouldn't.."

Just then, Harry walks out of an empty classroom with no other than Cho Chang. He makes eye contact with you and freezes. What will you do?