They don't end up together. It an open ending of Dom and Nolan meeting again casually years later after a separation. The story concludes with Nolan using an umbrella to shield Dom from the rain, the same way he did back when they meet for the first time. In the afterword, the author said they don't believe the mcs would find love together again due to many unsolved feelings, and it's open to the readers to imagine the conclusion of their relationship, however, after many readers requests, the author made an alternative ending, stating that it doesn't change the ending of the main storyline, but just to make the readers know how they would be in case they fell in love again after the final meeting
Major spoiler of the ending:
They don't end up together. It an open ending of Dom and Nolan meeting again casually years later after a separation. The story concludes with Nolan using an umbrella to shield Dom from the rain, the same way he did back when they meet for the first time. In the afterword, the author said they don't believe the mcs would find love together again due to many unsolved feelings, and it's open to the readers to imagine the conclusion of their relationship, however, after many readers requests, the author made an alternative ending, stating that it doesn't change the ending of the main storyline, but just to make the readers know how they would be in case they fell in love again after the final meeting