Ron
Not Thinking
He hadn't been thinking when he had said she was a nightmare, nor when he locked the troll in the loo. His not thinking was why they were friends.
Fine Line
As Molly Weasley listens to her youngest son rant about how much of an insufferable know-it-all this girl is, she thinks there's a fine line between love and hate.
Disease
It was like he had some disease. Every time they made up he just had to go and make a mess of things. His disease caused him to upset Hermione.
Quitting You
All he wanted to do was quit the Quidditch team, but Angelina wouldn't let him. He wondered why, but was secretly glad she wasn't quitting on him.
Nature
He had always liked the outdoors and nature. Until the months they were camped out in the tent. Then he had begun to miss the comforts of home.
Unfaithful
He had been unfaithful. When he had said that he was going with Harry in his first year he had meant it for life – not until he had gotten frustrated.
Attention
He was paying a different kind of attention to Hermione lately. He had definitely noticed she was a girl – but he wasn't the only one who had noticed either.
Missing Out
The days over Christmas that he spent with Bill and Fleur just did not feel right. He was missing out on what was the most important mission ever.
Broken
She looked so broken, and it was his fault. He had not been able to protect her from the curses and torture of Bellatrix. Her mind might be broken too.
Why Not
When she kissed him, he kissed her back, thinking, why the hell not?