Fred/Helena and whoever else is good people!
He smirked at George when Helena spoke from beside him. "See, I told you!" His eyes went to her, trying to figure out how she was feeling. It wasn't easy. Better to just do what he thought she might want, rather than be completely wrong. Her not sitting down gave him a hint.
Fred faked a yawn, one he knew George would see right through, but it would actually look real to anyone else. "Wow, it's late. I should get to bed. I'll walk you back to your bungalow," he said to Helena, standing up. He mussed up his twin's hair as he passed him, adding a "see you tomorrow."
Once outside with Helena, he smiled at her, saying, "Thanks for coming with me. It meant a lot. I hope you had fun, despite being dragged." His words had come out in a rush, and he was thankful it was night so that his blush was visible.