the doctor's familiarity level with each of the Calendar Council, minimal spoilers version
January: have spoken before. she respects his passion but considers him rather Out There
February: she pulls a gun on the doctor. the doctor is like "why, there is no need for this unpleasantness!" she's like "just checking :)" this happens every time their paths cross
March: have not met
April: worked together to [spoilers]. there is strong mutual respect here and she would describe him as "someone who knows what he's doing." even if she considers him needlessly sentimental at times
May: they have met for the usual reasons that people meet May
June: have not met
July: good friends!
August: they know of each other but their communication styles are incompatible
September: he has Heard of the doctor and is deeply bemused by him
October: they have not met but Know Of each other
November: good friends!
December: have not met. but they Know Of the doctor
(fallen london stamps by