Watching the anime, I've always wondered just how the hell did Yuu ever put up with Ayumu's possessiveness and codependency? How did she even stay calm through every single of Ayumu's outbursts? Then episode 12 hit and I realized that Yuu was actually enabling it.
YuuPomu isn't exactly healthy, Ayumu can't share and Yuu can't let go, but it is interesting that a relationship like this actually exists within Love Live.