Who was the one to propose: Neither; but if marriage was an option, jiyuna would have to suggest it, because cas would not.
Who stressed more over wedding planning: jiyuna, if there was a real choice.
Who decorated the house: both; bits and pieces of themselves are scattered around.
Who does the cooking: both. it switches between them depending on how lazy caspian is.
Who is more organized: caspian. everything must be in it’s place.
Who initiates bedroom fun: both, though caspian’s more likely.
Who suggested kids first: neither. caspian finds that his already living daughter is enough, and jiyuna doesn’t really think about it?
Who’s more dominant: caspian.
Who’s the cuddler: they both are!
Who’s the big spoon/little spoon:. it switches. mostly, it’s caspian who’s the big spoon. though, sometimes jiyuna does nestle up to caspian’s back.
What’s their favorite non-sexual activity: cuddling, nest-making, going for walks, you name it.
Who comes home drunk at 3am: cas, for sure.
Who kills the spiders: neither. they both collect them for food later on.
Who falls asleep first: jiyuna, considering cas doesn’t sleep often.
A head canon: caspian’s extremely particular with how their nest is arranged, but jiyuna’s very patient with him, no matter how long it takes caspian to finally get comfortable. even if cas doesn’t sleep, he still lays with jiyuna to insure that his mate is feeling safe and warm.
Their relationship summed up in a gif: 

Do they have any “rituals”? Every night before bed, they preen eachother’s wings and tail feathers. Every morning, they do the same.
Who is louder? Depending on the situation; jiyuna’s louder in bed, caspian’s louder when he’s angry or in general when he’s feeling up to it. those grunts can get pretty noisy, you know.
Who is more experimental? cas.
Who takes more risks? cas
Do they fuck or make love? most of the time, make love. 
Lights on or off? depends on if they turned the light off or not.
Who is more likely to be caught masturbating? cas.
Who is more likely to suggest a threesome? cas
Who comes first? jiyuna.
Who is better at oral and who prefers it? jiyuna’s better, cas prefers getting it.
Who is more submissive? jiyuna.
Who usually initiates things? cas.
Who is more sensitive? jiyuna.
Who has the most patience? saint jiyuna.
Which kinks do they share?  —