Whilst it seems at though would be refreshing to see a hard as nail's type companion who has no romantic interest or close relationships of any sort, without it I think the writers struggle to see how to further develop the character or have reasons to show their various emotions.
Take Clara, some have said she seemed a bit flat in series 7 but there was still the 'impossible girl' mystery to keep intrigue over here character. Now though that's all done so they obviously have to have a way to further the character and keep her interesting, so hence in comes danny pink, who I think it's safe to assume will at least be a close friend but is fairly likely to develop into a love interest also.
Take Clara, some have said she seemed a bit flat in series 7 but there was still the 'impossible girl' mystery to keep intrigue over here character. Now though that's all done so they obviously have to have a way to further the character and keep her interesting, so hence in comes danny pink, who I think it's safe to assume will at least be a close friend but is fairly likely to develop into a love interest also.



