Sind Noah und Nick am Ende des dritten Bandes (culpa nuestra) wieder zusammen?

Yes, they’re coming back together. To shorten your time, you can also read the books. These are still a little more detailed than the films, which is sometimes really a pity when scenes are omitted in the book, but it is clearly often not that feasible or also a temporal aspect, since the film cannot go over hours, there are 2 hours more than enough.