[She is, because she likes Mei. And someone has to like her.

Besides that, there's also the fact that she's trying to decide exactly how to reply to that first part there. Excuse her for being quiet for a minute or so, she's clearly thinking very hard about this.]

...that...doesn't always matter...

[Apparently all of that thinking only amounted to four words.]

Oh. My shift is over...and it's slow today, so I thought maybe I'd go out and train a little...

[Meaning she probably got told to go home.]