Roaming the House?

I'm not sure why we had such a sad morning, but we did. After helping get her into her bath, I returned to help her and I found tears. Most of the time I try to just keep going and not get into it, if I can, and at times she will forget why she was sad. It really is a heartbreak time for me to ever see her cry, but if I breakdown the crying party gets alot worse. After we finished the bath, she was still crying so I asked what has got her down. Her answer surprised me more than anything that has happened in a while. She said, after several tries, I don't want you to put me in some kind of home. This is what she said and it shocked me but here is what happened earlier in the morning.
At about 3:00 a.m. I woke up and went to turn off the fan over her bed. I did not notice that she was not in her bed....big mistake on my part. I returned to my room, right next to hers and as I sat down I looked up and there she was returning to her room. I think she had gotten up and was just sitting in her chair, but I'm not sure. I helped her get back into bed and returned to bed. In the early morning I asked her if she remembered being up early this morning. She didn't remember the incident. That bothered me, but I didn't let her know it. Evidently she thought about it and when I found her in the tub she had been thinking about it and got worried that I would put her in some kind of home. I of course assured her that we were a long way from anything like that, but I really couldn't believe she even said what she said....