MINI-ESSAY
Because I was bored at 3am, have a somewhat disjointed mini essay. I make no guarantees for coherency.
Short version: Rose isn't in love with the Doctor anymore.
Long version: While she's been in camp, even before he outright told her, Rose has come to fully understand that she isn't going to be able to be with him forever, and in fact probably doesn't have much time left with him at all after she leaves camp. His regeneration cemented that for her, which is part of why she's had a hard time adjusting. It's not because she wants him to stay who he was before, but because she doesn't want to fully acknowledge the fact that she's not in love with him like she used to be. She fell in love with his Ninth and remained in love with his Tenth regenerations, but Eleven, while still technically the same person, is also sort of a stranger, and not who she fell in love with. Really, even when she first arrived in camp, she sort of knew he was a different person from the Doctor she'd just left behind, outside of camp, but it was easier to put out of her mind at the start. But recently, especially in the past year or so, even before she knew he was dying, it was becoming harder and harder to ignore and keep loving him the same way she had before. So. Does she still love him? Yes, and she always will. She's just not in love with him anymore. And that's hard for her, because she'd never loved anyone like she loved the Doctor, and probably never will again. Because once you go Time Lord, you never go back.
Short version: Rose isn't in love with the Doctor anymore.
Long version: While she's been in camp, even before he outright told her, Rose has come to fully understand that she isn't going to be able to be with him forever, and in fact probably doesn't have much time left with him at all after she leaves camp. His regeneration cemented that for her, which is part of why she's had a hard time adjusting. It's not because she wants him to stay who he was before, but because she doesn't want to fully acknowledge the fact that she's not in love with him like she used to be. She fell in love with his Ninth and remained in love with his Tenth regenerations, but Eleven, while still technically the same person, is also sort of a stranger, and not who she fell in love with. Really, even when she first arrived in camp, she sort of knew he was a different person from the Doctor she'd just left behind, outside of camp, but it was easier to put out of her mind at the start. But recently, especially in the past year or so, even before she knew he was dying, it was becoming harder and harder to ignore and keep loving him the same way she had before. So. Does she still love him? Yes, and she always will. She's just not in love with him anymore. And that's hard for her, because she'd never loved anyone like she loved the Doctor, and probably never will again. Because once you go Time Lord, you never go back.