Jamie returns for a reason

Spoilers here. After loving this film for decades, I finally looked at what everyone has been saying about it on IMDB. I didn't go over every entry, certainly, but it appears that many viewers didn't quite catch that Jamie returns with the specific intention of helping Nina to move on. Much written about how she remembers how neither their love nor Jamie were perfect, after they've been reunited for a time, but no discussion about how he orchestrates the entire thing. After allowing both Nina and himself the joy of their first reunion, he slowly ramps up the annoyances, ultimately with the help of his dead mates. Then toward the end, after she leaves in a huff, the other ghosts look at him inquiringly, silently asking him if his efforts might have proven successful, that she may be ready to move on, and he replies "I think so." It's their congratulatory pat on Jamie's back through the window (well done lad) that makes me burst into tears every time. I wonder if it's really clear to everyone how much Jamie does to push her gently into moving on. I imagine it is, but someone reassure me please?