Quit Playing "Tug Of War" With Each Other
When you can let go of the need to be right, you can open the door to love and understanding. Someone has to let go of the rope and end the power struggle. Are you open to making that move? Offer a different solution ("You know, this isn't working for us. What if we tried this instead?" or even "yes, I know I said I would do this, and I haven't done it"), or suggest three alternatives and let your partner pick the most appealing one.