Nick doesn't like that Harry doesn't label himself. "Either you're gay or you're not!" He yells at him. "It's not that hard to figure out."

He punched Harry.

Harry and Nick are not friends anymore.

Niall says that Nick is stupid and Harry doesn't have to label himself if he doesn't want to.

"Can we hang out in the tree today?" he asks after.

"Of course," Harry answers.