I agree with limch, the worst part i felt is when they don't know what they want and yet could not agree with your decision. That really frustrates me.

While i was doing my kitchen renovation, i asked my wife what design she wants, colors, cooking equipments etc, and she is clueless. Not even bothered to find out more from friends or online and let me do all the research.

When i have decided on the design and colors, she said this and that not nice but when asked to decide, cannot do so because don't know what she herself wants and that is trigger point.

At the end, i just decided on everything because wasting time on waiting for her to decide on what she wants and wait for the fight.