Not romantic, not sexual
In stories, to my mind love is at its most interesting when it is not romantic and not sexual. Much of The Big Bang Theory was driven by the relationship between Penny and Sheldon. Andy and Maggie in Extras both value their platonic friendship very highly.
I think there's potential in the relationship between Gary and his daughter Ellie. (Incidentally, their rapport reminded me of Rose and her father in the Doctor Who episode Father's Day.) Ellie obviously sees Gary as a possible father figure, even though she doesn't yet know.
I look forward to seeing how this plays out, if we get a new series.
So this is permanence, love's shattered pride.
What once was innocence, turned on its side.