Nnnoo, I'm reasonably sure she got exactly the right impression.
Onee-chan, wai-...
Mumph!Welcome homeOh, right
She said she was worried about something with you, so ask her about that, okay?I'm baaaack~!Mmnnh!Eh-
Um-...!Did she get a horribly wrong impression!?Little broooooooooBwah!Uhh~
I got her home safe, so I'm gonna go now...Oh jeez, she's got it bad...Well, good night~