I'd agree that marriage isn't for everyone. You have to put up with an amazing amount of bullsh*t to stayed married. I'm not stating that as a criticism, but hard fact. You will hit rough patches. And if your partner falls seriously ill, as mine has, you have to adjust or bail. I've chosen to adjust. But I'm a stubborn rat b@stard, as anyone here can attest.
And she's as tough, if not tougher, than I. I wouldn't put up with me for very long, I know that! But it boils down to the fact that we're better (and more dangerous) together than apart. How else could we possibly spend nearly every hour of the day together?
By the way, our 15th anniversary is coming up this July. :)