I was going to say that I think just being light and smiley and a gracious host is all you can do at the moment. If you have no beef with her then just acting like that will eventually lighten the mood and she will warm up to you. I don't always think that these kind of things need talking about. Sometimes just being your wonderful carefree self makes up for a million words that say, "I'm cool with this, don't worry." You could just say, "you know, I'm good right now, I don't have anything that needs discussing and don't have a need to hang out with you, so how bout we just check in in few weeks or so and go from there." That few weeks could mean a big difference to the level of communication and shyness she seems to have.
Anyone want to be friends on Facebook?
Send me your name via PM