Hermione: You've done it, Neville! You've found the Room of Requirement!
Ron: The what?
Hermione: It's also known as the Come and Go Room. The Room of Requirement only appears when a person has real need of it, and is always equipped with the seeker's needs.
Ron: So, say you really needed a toilet...
Hermione: Charming, Ronald. But yes, that is the general idea.

Ron: Hermione, you are honestly the most wonderful person I have ever met. If I'm ever rude to you...
Hermione: I'll know you've gone back to normal.

Ron: [to Hermione] Who are you and what have you done with Hermione Granger?

Harry: This is mad. Who'd want to be taught by me? I'm a nutter, remember?
Ron: Look on the bright side. You can't be any worse than old toad face.
Harry: Thanks, Ron.
Ron: I'm here for you, mate.

Hermione: How'd you get away?
Ginny: Puking Pastilles. It wasn't pretty.
Ron: Told them I was hungry and wanted some sweets. Of course, they told me to bugger off and ate the lot themselves.
Hermione: [shocked] That was clever, Ron!
Ron: It's been known to happen.

Ron: Don't worry, I'll go easy on you.
Hermione: [sarcastically] Thanks, Ronald.

Ron: [about Harry's first kiss] Well? How was it?
Harry: Wet. I mean, she was sort of crying.
Ron: [laughs] That bad at it, are you?

Ron: Maybe you don't have to do this all by yourself, mate.

[referring to Ron's Christmas jumper]
Hermione: I can't understand why you don't want to wear it, Ronald.
Ron: Cause I'll look like a bloody idiot, that's why.
Hermione: No more than usual.

Ron: [about Harry's first kiss] Well? How was it?
Harry: Wet. I mean, she was sort of crying.
Ron: [laughs] That bad at it, are you?
Hermione: I'm sure Harry's kissing was more that satisfactory. Cho spends half her time crying these days.
Ron: You'd think a bit of snogging would cheer her up.
Hermione: Don't you understand how she must be feeling? Well, obviously she's feeling sad about Cedric, and therefore confused about liking Harry, and guilty about kissing him. Conflicted because Umbridge is threatening to sack her mum from her job at the Ministry, and frightened about failing her O.W.L.s because she's so busy worrying about everything else.
Ron: One person couldn't feel all that, they'd explode!
Hermione: Just because you've got the emotional range of a teaspoon.