I guess with all their years together, she couldn't imagine a life without him, and hence she decided that at the very last they will be together.

Maybe it is an expression or a feeling of love, that one should feel incomplete without the other.

I do oftentimes pray for the safety and health of my wife, but it is not only because of love, I do not know how I will cope alone in raising our young family and so almost daily I whisper to my God to keep her well.

It isn't the same thing.