Sweetie pie you have made your bed now lie in it.
well that's nice of you isn't it? Don't be a git. She probably knew nothing about this whole sorry set up when she started going out with him.
I highly recommend you go to exjwreddit for support. Its a younger crowd and we get many posts like yours.
To be really helpful I would need more info, ie is he disfellowshiped? were you dating before that? Does he believe? Is he being shunned? Has he heard of "undue influence" or the B.I.T.E. model of cult indoctrination?
As a start please you and He check out jwfacts.com to find out what we call ttatt " the truth about the truth".