Morituri - thanks for your snide comment. I wish the world were contained to nice little boxes where I could evaluate everything in such a compartmentalized way. My child sees neither an ideal marriage nor is she aware of any fundamental issues.
I guess we could have split, forced her to move, change schools, forfeit her involvement in extracurricular activities (among other hardships) to show her what people do when they can't fix their problems.
We make a number of concessions in life in the interest of our children. They are rarely decisions made without some associated consequence.
These are not my sentiments alone, my wife is fully informed and makes the same decision. My child is a prospering student, member of the church, athlete, and wonderful young lady - I wasn't prepared to jeopardize all of that, nor was my wife, for our own personal wants and needs.
Ideally yes, we would be a model unified and loving parental unit, but the world isn't all peaches and cream dear.