When only one is making an effort- it is like beating a dead horse. We had problems and I made the effort to keep it together. He didn't make any effort and the relationship finally fell apart to the point there was nothing left to save.
I feel that besides abuse and cheating- taking your spouse for granted is the cancer in a marriage. When you overlook the small things that make a relationship healthy and act as if no matter what - he/she is gonna be there, well then that is a sure recipe for divorce. I always said, "It's not the getting, it's the keeping where all the hard work comes into play."
If you are only making the effort to establish but not to maintain, then what can you conclude as an end result?