Push that knife deeper, damn you.
I try (:
"Don't make it sound like we're a married couple!"
Hahaha, this sounds like someone who's being teased by a high school friend about someone she's hiding feelings for.
Wait a minute...
I wouldn't be surprised if Shou meant for it to sound like that. If you take into account how she behaved when teased - firstly, it was calm and replied as such, in that it was due to something or other (I've forgotten), a little bit of time later (secondly) she doesn't really refute it with that much conviction, almost like she's thinking about it in her head "It does seem like that, and I don't mind it as much" or something along those lines, and lastly we have this chapter where she's in frustrated denial (aka a tsundere)
Then again, it's 4:30am here so don't read too much into what I'm writing xD