>>535160407
Bro, Lumine is trying to use the Loom of Fate to revive the Kingdom of Khaenri'ah by reversing time to before it was destroyed, because the people of that kingdom are important to her and she considers it their home. Aether is trying to stop her because reversing time on that scale would endanger everyone else, and he believes she should move on instead of clinging to the past. Also, Aether has selective amnesia so he doesn't remember everything completely, so he may not have the same attachment to that place as her.
Does that sound familiar? This is literally Phrolova and Rover’s story with 2000 hours of yapping added.