Most Helpful Guy
Some many possibilities man. But I think I could narrow down does possibilities:
1) She could of bend bored and simply wanted to start a conversation.
2) She may care for you more than you think or more than she let's on.
3) She may have a liking for you, though she doesn't want to admit it.
4) She may be developing Platonic love for you.
5) She might of simply wanted to be friendly and wish you good luck on your date.
Now there are many other possibilities but given what I know this all I can say. But you can connect the dots and see which probability fits properly.
Most Helpful Girl
Maybe she just want you to tell you that you should have on your date.