I know Bunny’s canonically pretty emotional as a person so he might also be romantic but I love the idea of him just
flirting shamelessly with Jack
like to the point that the other guardians are a little uncomfortable from all the innuendo
and Jack is just totally oblivious cause lack of socialization
"Lets get down to the real business here Snowflake: Your place or mine?"
"Um… I don’t …. have a house?"
and it just gets more and more ridiculous as time goes on because Bunny won’t give up but no one has the heart (or inclination) to explain to Jack the easter bunny wants to fuck his brains out
"Ya know Frosty, Ah’m no weather man, but you can expect more than a few inches tonight…."
"Actually I was going for more of a light dusting on the east coast, just to prep for christmas"
And after this little beauty during the elves great chair destruction of 16’:
"As long as Ah’ve got a face, ya’ve got a place to sit"
"… Bunny what even are you okay"
"ARE YA FOR FUCKING REAL"
Tooth literally just locks them in a room together
"HE WANTS TO BANG YOU LIKE A GONG BYE GUYS HAVE FUN THERES LUBE IN THE SIDE DRAWER"
And Jack just
"… Does she want us to fix a car"