My husband and I built a wall unit before we were married for his apartment that became our apartment. I didn't do much but help hold things as he cut and glued/nailed them together. I think that was the only project that went well when we worked together. as others have said, men and women think differently and he definitely has his idea of how things are and my ideas are not the right ones.
I don't help him any more and our son is not usually happy about helping either, even though he does learn things.