Hermione, of course

As Harry entered the common room, he spied Ron talking with Hermione. When they saw him they grew quiet. "Hermione, can I speak to you?" Harry asked. He looked at Ron. "Alone?" Hermione nodded before the two left the common room and went an abandonded classroom. As he opened the door to let Hermione inside first, he stealthfully grabbed his wand and whispered, "Pleasura." A small white spell travelled out of his wand before hitting Hermione. She tensed up for a moment before continuing to walk into the classroom.

"What is so urgent Harry?" She asked. Her eye's glowed a bit before calming down.

"You should believe me about not putting my name in the goblet, and that Ron is acting like an Ass." Harry said. Hermione was silent for a moment before her eyes shined again.

"Of course, you're right. Why didn't i believe you before? Of course you didn't put your name in it. Your underage and don't like fame." Hermione justafied. "And Ron is an ass." She added. Harry nodded before they returned to Gryffindor tower.

"I'm going to bed." He told Hermione. In reality, he went to study the book some more.