Hey Dunno! I agree that there does not appear to be an audiobook. Reading it to her is actually a nice idea, but two minutes a night isn't going to do it. I'm not sure how old your child is, but the time when my wife and I read to each other and really enjoy it is on car trips (of more than an hour, usually).
Just a suggestion.
The other suggestion is to say, "I can't force you to read it, and I can't create an attention span for you, but I can (insert here job such as watch kid, do laundry, make dinner, etc.) to give you some time during which it would be great to see you make an effort to read it." Tell her how much you would appreciate her taking the time and effort to read it, how important it is to you, how it's not a "sex manual" but rather how it has done a great job of describing how you feel, and how you think (since it's written for both HD and LD spouses) it will probably do a good job of describing how she feels.
Good luck. You've already come pretty far...it took me months to give the book to my wife.
