big spoon/little spoon: Diane/King (obviously)
favorite non-sexual activity: Eating new foods together.
who uses all the hot water: Diane because her size requires a TON of water for showering.
most trivial thing they fight over: I have no idea.
who does most of the cleaning: King
who has a season pass on their dvr/who controls the netflix queue:
who calls up the super/landlord when the heat’s not working: King
who steals the blankets: Diane
who leaves their stuff around: Diane
who remembers to buy the milk?: King. He always makes sure to have plenty of milk (and other foods) around for them to share.
who remembers anniversaries: Both
Who cooks normally? King usually, but Diane cooks occasionally.
How often do they fight? Each other? Not very often. But they fight enemies almost every week.
What do they do when they’re away from each other? Diane talks to Elizabeth and Merlin, while King talks to Ban and Meliodas.
Nicknames for each other? King calls Diane his "Big Cutie" and she calls him "Your majesty" to tease him.
Who is more likely to pay for dinner? King
Who steals the covers at night? Again, Diane
What would they get each other for gifts? King gives Diane a giant custom-made dress, while Diane gives King a crown made of his favorite flowers.
Who kissed who first? Diane kissed King first.
Who made the first move? Diane
Who remembers things? They both remember different things.
Who started the relationship? Diane
Who cusses more? Diane (much to King's shock)
What would they do if the other was hurt? EVISCERATE whoever was responsible.