They all think they are special, and they all get stroppy when they find out about all the other many, many women.
If the Doctor has been there since 1967, that means that he was doubled for all the really abrassive timeline splits like when Martha walked the Master's Earth for a Year, and that whole turn "left stuff" with Donna when he died in sticking it to that smoking hot Spider-Lady.
What confusing behaviour for the lord of time to leave time derailed like that, unless 13 was helping out a little behind the scenes, and we never noticed.
If the Doctor has been there since 1967, that means that he was doubled for all the really abrassive timeline splits like when Martha walked the Master's Earth for a Year, and that whole turn "left stuff" with Donna when he died in sticking it to that smoking hot Spider-Lady.
What confusing behaviour for the lord of time to leave time derailed like that, unless 13 was helping out a little behind the scenes, and we never noticed.