You're viewing this through a biased lens, she's a 19 yr old sheltered girl who's never been touched by a man(except combat, but no one has probably ever touched her skin) and then he makes out with her by mistake. This is something that in many REAL cultures and times(including a lot of periods of Chinese history) would have brought such personal shame she would have been expected to commit suicide. So yeah, she never wants it to happen again, plus getting grabbed by the boob can hurt, a lot.
I hope this Feir girl grows up. It’s annoying when a female character who for whatever reason is disguised as a male is all pissy is a guy takes some liberties with them...hello! The other guys don’t know you’re a female so why are you enraged that he’s grabbing a sensitive area that doesn’t bother a guy?!? She’s absolutely annoying!