Your understanding of your STBXs POV is through your value system. Not really valid since hers is out of wack in selfishville.
As an example, if you are in her shoes and your option was to move to where the boys are now to get 50/50 custody versus getting the 25/75, what would you choose? My guess is you would not hesitate to move to get 50/50. That is your value system. Hers accepts 25/75 because her value system doesn't care as much.
Me:49 W:45 M:19 T:22 EA confirmed and ended 8/2014 S:19,17 D:9,5