Don't ask. In the scheme of things, a week is nothing. She might not really know why she's been acting positively, and asking will definitely impact that.
Not sure about signing the papers, but definitely don't give her a heartfelt letter now.
Me 43 W 38 M 5 T 7 SD20 S15, S13 with 1st W ILYBNILWY June 2010 Separation/Bomb July 2010 Divorce Feb 8, 2011