I think it was both blatantly romantic, but in different ways. I also could never choose between who I ship more, I adore both their relationships. I prefer to read about Ten and Rose when I read fic, but that's not because I adore Nine/Rose any less. With Nine she had more of that smouldering sexual tension, where I think she was maybe not as aware of her feelings yet, even if she did have them, but he definitely knew what she was doing to him but he would never in a million years let himself act upon it. With Ten, I feel like they were in a place where they both absolutely knew what they felt, and it was still very much unspoken, but
so there. Like the Doctor himself said, "oh, she knows..." and "does it need saying?" I think that about sums it up. To me it shows in everything they did, every look, every touch. And then with Tentoo she finally got a Doctor who was freed from all his self-imposed boundaries, so they finally got to act on those feelings