That was the right thing to say. She has absolutely no interest in being caught up in the trouble that a complete stranger has with his past.

She would get up in the trouble that a very good friend has with their past, probably, she has in the past (though not necessarily voluntarily), but she'll generously allow this stranger to keep his issues to himself.

And jump off the carousel, turning to face Hajime one last time before padding away.

"Good luck with them not catching up with you, chummer."