Maybe...but 12 years is a long time...a lot of shit to split up...there are kids involved there is the emotional attachment with them not to mention the displacement they will be going through.
I mean there is a place for divorce but I would fight a lot harder to fix things then have a sandwich and go "ya know I think we are done here."...but thats just me. I think a lot of people give up on marriages way to easily because they have this romantic idea of what marriage is in their head.
My parents have fought like crazy and have stayed married for 33 years. My mom changed the locks on the house one time and nailed the windows shut so my dad pulled a wall off the house with his truck....insurance didn't cover that oddly enough....this was years ago but still they have had some heller fights and are still together and I know they love each other....don't know how they have stood each other this long...If I'd been one of them I'd of killed the other.