Hello and welcome. If it helps, my wife and I are a success story where we both left the faith at about the same time early last year. I was the first to leave, and it was difficult at first. She became even more spiritual and made sure to get to all meetings and do a lot more service.
However, I would bring up little things about why it's not the truth, and slowly it sunk in, but very slowly at first.
What worked for my wife is she on her own researched the history of the WTS on Wikipedia (non-Apostate site), and the crazy past just doesn't show how it could be the truth. This really put a lot of doubts in her head, and made it easier for her to open up her mind.
We'd be glad to share more if you like, just let me know...