How does she feel about me?

You're really 32! Because all of this sounds so juvenile that I'm struggling with myself to even bother answering it. Honestly, why should you care about whatever this girl thinks? It's not as though you've told us about some deep abiding love that you have for her. You were exchanging pleasantries is all that was happening!!! There's nothing to be interpreted from that no matter how odd her reply and here friends reactions may have been.