Right after Harry's proposition)
The match was a success, but Oliver still hadn't believed his luck. They had won against Slytherin. The team was awesome, even Katie. But Harry scared Oliver away. Harry believes in a relationship that is centered around nothing but sex. Oliver n the other hand is the hopeless romantic. Oliver wasn't ready. They went over this before, but Harry really wanted to prove himself. Oliver didn't mind fooling around, but was not ready for the commitment of sex.
Oliver ran from Harry. That's all he knew he could do. He ran up to the tower. He took out a bit of powder and threw it into the fireplace. Harry would never find him.
So much was going on, and he was prepared. Many secrets had come out, and Oliver was still taking it all in.
Oliver was still clad in the tight fitting quidditch robes, but the weather wasn't too bad. He looked around the common room before shouting into the flames,
"The Griffin's Nest."