Who’s in control?
Any relationship is under the control of the person who cares the least. It is usually a long slide toward emotional alienation. True? Work demands, children, life, in all of that did you pay yourselves first? Did you 'dance with the one that brought you,' or ask him/her to sit this one out as life did what life does. The one who cares the most will need to guide the two of you away from the edge of breaking. Is it worth it to you?