I'm going to say that the reason you didn't see this coming is because a lot of whatever she has been harboring has been swept under the rug and never addressed. When you pull up the rug there is going to be an incredible pile of garbage, unfortunately.
Yep....I'm afraid you're right. These things rarely have a happy ending.
Together 18-ish and married for 12. To say we never fight is 100% accurate. A temporary shunning followed by a civil discussion has even been rare. I thought we got along great. Really never saw this coming.
She didn't even have anything bad to say about me when she kicked me on the junk last night. Maybe she complains about me to everyone else though.
Maybe you didn't fight enough? It's been my experience that almost all couples NEED to have the occasional rumble, just to show that they still really care and don't think so little of the other person, that they consider their opinion insignificant and not worth arguing over. Plus the make up sex is always good at rekindling romance.