Han
(best friends/fake flirting)
They are seen playful flirting with each other, blowing kisses during interviews, winking at each other constantly, never getting bored of each other, matching outfits,
helps her with songwriting,,calling each other honey,, husband and wife (platonic jokey)
Often poking each other's cheeks,, kissing each other's cheeks (platonically),holding hands,piggy back rides
Felix
(best friends/romantic/soulmates)
They are often seen 'playful' flirting,cooking
together,looking at each other lovingly, smiling whenever they see the other,falling asleep together,matching phone cases, knows how each other are feeling by looking at them, can communicate with looks,teasing,too many inside jokes, always defending each other,always touching in a way e.g. holding hands, linked arms, leaning her head on his shoulder,holding his arm, piggy backs, basically everything.
Seungmin
(Besties / siblings)
They love to listen to music together,singing ,Savage duo ,teasing, play fighting, are too similar,always checking up on each other, bickering, Both loving Day6. Often seen playfully fighting,leaning on his shoulder,arms over each other's shoulders.
I.n
(Siblings/mother-son )
Constantly asking if each other are okay and how their day has been, watching K-dramas together, play fighting, bickering, caring about each other alot, admiring the others talents, feeling responsible for him, sort of a motherly figure, helping him with his homework often seen hugging,play fighting,squishing his face with her hand.