my wife left, but still lives with me

[tough spot]

It is possible she wanted me to step up/defend the marriage. Not really sure........Not really sure of what is going on. Today we spent all day together, ran errands, seemed to have fun. I did step up the first two times we have had these type discussions.

But I suspect if I asked her if she changed her mind she would say no. That is what i wonder about. I have been down this road before and if these are her thoughts maybe i should just let her go. Normally I am pretty articulate and can get my point across but I can't seem to make what i feel, understandable through these posts.