Luffy and Nami aren't going to fucking in the ship because of Oda's no romance in the crew policy. If you want them to end up together, better hope that Oda makes Luffy stop sailing.
2. What policy? There was an ancient interview where Oda said romance wouldn't be depicted at all (false) and a recent Netflix thing to debunk Zoro x Nami in the OPLA specifically. When has Oda truly said there won't be romance in the manga? Why do you think so many people ship Frobin or whatever the fuck?