Be the bigger person, and work past your own frustration and resentment FIRST, before asking her do to so. Once you've demonstrated your own resolve to make the relationship work, then you can honestly ask her to step up to the plate with you.
This is a hard thing to do. Bloody hard. Believe me, I know from experience. But it's what woke up my wife up to the fact that I really meant to forge a better marriage from the train-wreck that we had built previously. I did the manly thing, and took the lead: and she followed -- thankfully, willingly, and lovingly.
Brilliant~ and neccessary for real change...
Everything else he said is brilliant (as always). I would recommend printing out his post and re~ reading it often for motivation to change YOU first!