You have made a move and told her what you believe, now the hurdle is that she thinks you should both believe the same. Once she reads CoC she will believe the same as you. It really is the book that wakes most people up properly.
There are lots of different ways you can get her to read it. You can take all the kids somewhere for the weekend and leave her in peace to read it. A poster on here took his kids to the assembly and his wife read the whole book and woke up to TTATT.
Show her why you believe as you do now, I think you are very close to waking her up especially if she is using bad language.
Kate xx