It was very nice of you to be looking out for your neighbour and it is impressive that she is still in your thoughts.
The funny thing with JW's is that while they may personally be in need of help or assistance, they really feel that it is you that is lost and misguided. This makes them very difficult to reach.
Often women in the situation you described your former neighbour having been in tend to put more weight to the JW belief system because that is all they really have. They make it into something more than it is and feel that it is the only thing keeping them afloat when often it is what holds them back.
It will be difficult for this woman to ever view you as a really close friend as long as she remains a Witness. You will always be considered just a really good person that she thinks would make a good Witness. She is thinking that it is such a shame that you are not and subconsciously is a bit confused because non-Witnesses are not supposed to be good persons - certainly not better Christians than JW's.
Imo, if you really want to help her this will be a long term "project". Keep doing what you have always done and be a good friend that is looking out for her. Keep critical comments about JW's to a minimum but perhaps ask well-timed carefully put questions that might make her think. Keep in mind you are ultimately tearing down everything she loves and holds dear in her life. If you take that away from her she believes there will be nothing left. You must replace what you take away from her and you need to show her that life can be just fine without her illusions regarding this religion.
Path