She was "killed off" and then written out after her return because the marriage had grown stagnant. ASM was bad for a good while with MJ in the picture, too.
I think people do think that and that's why nobody seems interested in ever talking about anything else anymore on these boards. Most conversations just devolve into lamenting a marriage that's been gone for 15 years. I prefer him married, too, but I don't think that's all that matters.