Susan Wittig Albert said this quote

Maude regards the ones who don't make it as her own personal failures. I guess I didn't put enough emphasis on 'until death do you part,' she says sourly, whenever she hears about the latest divorce. Sad to say, but some are in it just for the good times. Married folks, they gotta be like that cat's claw acacia I've got growin' in my yard. Gotta grab hard and hold on tight when the going gets rough. Only way to get through the bad times. Grab hard, hold on, and ride. No matter what.