Card buddy, this is a tough situation. First of all, you are doing a whole lot of mind reading, that can lead to a bunch of wrong conclusions. Stop that.
Second, if you are worried about W, I'd give her friends a ring and just inquire. Don't try to come across as controlling (surely you see a hint of that).
Be compassionate to her, but only neighborly... You are doing great. keep up the good work.
