Originally Posted by sebbie3000:
“I think it could be great if their romance actually only started because from her point of view she hadn't seen the Doctor for such a long time, and she had built up her emotions to such a level - and due to it being later in the Doctor's personal time line, he's already started kissing her (we saw her final one with him, it was his first with her, though), so it seems reciprocated. Therefore, it could be that the last time we see Alex play River, it will be an emotional journey for the Doctor: from how she greets him - that she's missed him so much, kind of thing - he would have the knowledge that the romance part of their meetings would be over. And this would be like how River felt after kissing the Doctor for her last time...”

I got the impression that maybe she started having feelings for him at a younger age, when she first remembers meeting him

River: Think about that. Impressionable young girl, and suddenly this man just drops out of the sky, and he’s clever, and mad, and wonderful, and… and knows every last thing about her. Imagine what that does to a girl.