possibly
Try to talk to her flirt with her a little You could try that and/or become good friends with her and move on from there
It's just a saying, meaning "because we're cool like that."
Even if you do not like the person, you should still be nice to him or her.
You will never know that the person likes you until you ask them directly. They could probably like you too, so have hope. If they don't like you, it's okay. Someday you'll find that special someone...