a headcanon I have about robin!selena is how easy it is for her to make the decision to leave for the world of fates if robin decides to sacrifice himself at the end of awakening, because for all her effort to come back to the past and perhaps change her parents' fates, she's failed again. she failed to save him. she keeps thinking about what she could have done to stop him, if she could've done more, that maybe if she were kinder or acted differently, maybe her dad could have chose differently too. but instead, he broke his promise to not die on her. when it came down to it, she thinks he picked a different choice over his own daughter (even if deep down she knows he was thinking of her) and it hurts so much. she's had her hopes crushed over and over again, that there's no point in clinging to the hope that her father will come back, waiting for something that by all means, doesn't seem like it'll happen at all. It's easy to just leave her mistakes behind and focus all her efforts into something else. So she just leaves. But really, what she's doing is running from her pain. And I also headcanon that Severa leaves during Robin's absence, so throughout her time in the fates world, she's still mourning his loss. and what naga has said about Robin only being able to come back if the bonds he's forged in the world are strong enough haunts her, because maybe if she stayed, he would come have already come back, but she didn't believe in that enough. not to mention, she left her mother and sister behind, too, to mourn alone, and the guilt eats at her.
