...I have missed her, she helped shape me as a person and she's great company
Lola, you're letting misplaced sentimentality get the better of you. This is one of the most insidious ways in which JWs use the natural affection that we have as human beings against us - forcing people to lie to themselves, and to others, in order to continue or preserve a friendship, or familiar bond. And that is what you are doing, Lola. You are not being truthful to you, or to her.
Remember, the purpose of the JW bible study is not to teach, but to convert and inculcate. And you know the truth behind the Society's lies. It is truly a soul crushing religion. Why, in the name of all that's decent, would you willingly subject yourself to it again?
If she's great company, you can - and should - do various activities with her, as others have suggested. That puts your feelings about her in the proper perspective.
But having a study with her, especially when you know that you no longer believe in the JWs, is not fair to either one of you.
I know that you can't see this situation as clearly as the rest of us do, but at this moment, your relationship with this woman is not based on mutual respect.
Think about it. Please.