How did you resolve disagreements with your partner?

With us, the tasks are clearly divided. I do everything, from planning to the hard physical work. He just messes around on the PC. A white wall and a bare light bulb are enough for him; I can do whatever I want creatively. Still, there are always arguments, like where the kitchen should go? (Not even the floor is clear yet), How will the new wall be fixed? Plaster or clinker bricks on the ground floor? It’s really annoying here when you spend weeks and months trying to find a good solution, explain it repeatedly, and present interim results that get approved, and then suddenly he says, "But I want to do it like this," although he only spent 5 minutes on it and then acts as if he’s hearing my plan for the first time... He also once said I don’t let him do anything (when I complain that I do 90% of the work and he does almost nothing). Then I tell him to just do it, but if it’s not finished in a month, I’ll do it the way I want. One month, haha, unbeatable. He’s the kind of man you have to beg for 6 months before he even helps... But the sluggishness has its good sides too, because it’s the same with money. He earns it, I spend it. Although this year he learned how to order things online, so I do have to keep an eye on that. Everything’s okay. It just takes a little longer, and once a year I have my angry outburst because of it.