I got a question for You since You have watched some later shows.
Has The Doctor been romantic with any Companions?
From what I have read in the other echo that is what I read into
what others write.
None of the earlier Dr's every went there, but David Tennant's Dr. did have feelings for Rose Tyler, his companion. It was a different
situation, seeing as the Dr has never really shown any romantic inclinations to his companions.
It was hinted at in more than one episode though the Dr and Jack Harkness
were a thing at one time, though it was never shown in any episode, just alluded to.
-Dallas Vinson (AKA: Geri Atricks, Lupine Furmen)
--- Mystic BBS v1.12 A43 2019/03/03 (Windows/64)
* Origin: Legends of Yesteryear (1:123/256)