As of now I would just let it be and whatever happens happens. Don't push it. Keep it professional and if she still tends to not respond or anything. Don't let it affect you or at least don't show her it affected you.

Like everybody said she seems as if she is not interested. And you seem a little too desperate about her. Let it be calm. You do not her situation right now. Maybe she is having her own circumstances. If you want to talk to her, give both of yourself some time. You may share smile if you want to. Take time to know more.