Have the same situation with my wife. My suggestion:
1) Openly express your feelings. If you love him - tell him.
2) Openly,with zero emotions,explain your feelings toward WTBS. Explain what you do not belive in anymore and why. You ll have to repeat it several times probably, he will not understand it, do it without emotions.
3) We started deep family study together - we study history of WTBS (Hey - we should know history of our religion - shouldnt we?), mainly using Poclaimers book, sometime I ad some additional material .... focus on change of doctrins, false prophecies, Beth Sarim, Beth Shan .... Rutheford ....
4) We sarted daily Bible reading of New Testament - chronological. Focus on things that do not fit in WTBS doctrines ... In first century no centralized headquarters, Christians just walked with Christ, being led by the spirit, christians did not need any aproval from "GB" to form a congregation, ... Jesus saying we must dring his blood to gain everlasting life, ... other sheep ..., 144 000..., christians prayed to Jesus (epikaleomai) 1stCo1:2 and many others ...., We never read Bible as much as now,when I became an "apostate" ... and it is so interesting! Forget the WTBS crap and just read what early christians were doing ...
5) Dont give him the impression you want him to change his mind anyhow. Treat him like you want to observe the issues together - well,he is your spiritual head and you have some issues that troubles you ...
6) Dont have the attitude in your mind you want to change him.. He is a uniqe person with a free will... The goal is to help him to loose fear and to freely make up his mind. The goal is also to save your marriage (if you want to...)
My wife was raised as a hard core JW, when I first started "hush" on her,telling her in 5 minutes what I was learning two years, it seemed we will end up in divorce. But now it has changed a lot ... I give her questions she is not able to answer, after years of pioneering she see she has no biblical support for most WTBS doctrines ... we study the issues together, we talk openly without emotions slowly about diferent spiritual subjects... I dont know If she will quit as JW and I dont care ... I want her to loose fear and to fully understand everything ...
My situation is recent and very similar to yours. If I could help you anyhow I would be happy.
Albert