Will this knot that is in my stomach ever leave???

I don't know how to start this entry or exactly what to say, but here goes...
We moved mom into Arbor House on Tuesday afternoon. We told her that she was going there for brain therapy. We got there, unpacked her room and set the rest of her stuff up. She started to tear up and told me that she thought that this was a rest home. I told her that it was not a rest home. Shan & I told her that we knew it was scary and that we were a little scared too but we knew this would be the best for her. She sat on the edge of the bed and told us that she wanted to leave. It came time for us to go and her favorite soap was coming on so we both hugged her and told her that we loved her and would see her soon. It was so hard to leave her there...words can't express how hard it was to see the terror in her eyes as we left her in her room.
The rest of the day was really hard. I called up there towards the end of the work day and asked how she was doing. They said she was doing fine - was eating dinner at the time that I called. Here is part of what I wrote later that night:
I wish I didn't hurt so bad. I wish things were different. I wish I didn't feel like I've betrayed her. I hope she isn't scared. I hope she gets better - that they find a cure for this. I think today is easily the hardest day of my life. I hope she meets new people and makes friends.
It really has not become easier. It still hurts. I feel like we have made the right decision - the healthy decision to adequately take care of her. But that being said - its not more difficult...but it is just as difficult today as it was Tuesday. I really hope that she is okay. I know that she will never truly understand if a cure for the disease is not found in her lifetime. But I think that if she were in her right mind - she would want the adequate care and would do the same thing that we did.