I'm writing something which is currently at 15,000 pages and I've been telling the story through first person, present tense, from the POV of two separate characters. Each chapter follows the view of one of the mains, but at this point of the story, they are coming together and staying together for the remainder. I can't really have a POV for one of them, and not for the other (since they are both together), or can I? Could I still follow the same tense but swap POV's as the story progresses? I was thinking of going third person, present, but not sure. Thanks.