Originally Posted by
ChrisIII
The thing with Amy, Rory, and the Doctor is that the Doctor didn't really return her affections at all, and encouraged their relationship as well.
Funny thing about Sophia Myles, she was dating Tennant at the time I think.
As for the Doctor and romance, this isn't strictly a new series kind of thing; the Doctor was briefly engaged to-and seemed fond of-an Aztec woman in the first season-and of course there's the TV movie stuff with Grace.
Both Jo Grant and Sarah's appearances more recently seemed to hint they had a bit of a crush on the Doctor as well (although that's slightly implied in the original story the Green Death as well).
Not that it necesarilly happened between the scenes with all companions-for instance, I seriously doubt anything happened with the Seventh Doctor and Ace, although there is an amusing bit in an Eighth Doctor novel where Benny, a companion of the Seventh Doctor in the novels, meets his Eighth incarnation, and it's strongly implied they got together so to speak.