Guy Gardener wrote:
So does 9 fall for Rose because she looks like a weapon that can destroy a galaxy?
Perhaps on a subconscious level. If the Doctor can't remember "doing the right thing," it's unlikely that he consciously remembers the Moment's avatar. But he might subconsciously feel some familiarity with Rose, never quite knowing why she's familiar.
I've wondered if the Moment "made" Rose for precisely that reason, molding her to be someone the post-Moment Doctor would feel comfortable with to help him move on toward healing. But then we're into Sam Jones territory.
(To explain that last reference -- Sam Jones was the eighth Doctor's companion in the BBC novels. It turns out she was engineered to be the Doctor's perfect companion. RTD's first series of the new series might've done something similar with Rose had Paul Abbott's "Pompeii" not fallen through.)