In a round-about way, Bethie, it sounds like this woman is abusing your good intentions. She sounds like the type who is never satisfied with anything but the attention and pity. It's a form of manipulation.

The most disturbing part of this behavior is that she may be causing others to become so jaded to the situation that they will think twice before helping someone who is genuinely desperate and truly in need of help.

You might just have to walk away and give yourself a rest from her.