My gf came to my house and wasn't talking. She usually is very talkative. When I tried talking to her she would close up and not really say much. I tried to talk to her and ask her if anything was wrong and she told me everything was fine so I just did what I was going to do if she wasn't there. She then proceeds to stay in silence like a fool on my bed. After 10 min like that she lies her head on my chest and goes to sleep. What's up with this? Why did she do this and what should I do?