Furious 7 found Brian O’Conner struggling with civilian life and his role as a father like a soldier back from war, missing the blood and bullets of his previous life.
As a couple, Brian and Mia go hand in hand, so bringing Mia back without Brian is a tricky proposition and in a way undos the beautiful closing of that chapter.
At the end, he came to terms with leaving the fast and furious lifestyle behind him, realizing the importance of Mia, his son Jack and his future daughter.
After the passing of Paul Walker, Furious 7 did a magnificent job finishing the film and providing a fitting and poetic sendoff to fan favorite Brian O’Conner, who has been at the heart of the series since the beginning (minus his absence from Tokyo Drift).