Okay, let's get this started

(Star sanses)

Dream will get jealous at the smallest things other people do, even if a friend of yours gives you a hug, the little lemon will get jealous and will suddenly have the urge to hold your hand

Ink is careful to wear his belt around you because he is afraid he might scare you if he doesn't have his vials on, he gets really nervous if he loses his vials and he knows you are in the same AU with him, or coming to visit him and panics about it, you think it's funny

Blueberry is a whole ass floof ball, and he likes doing a lot of things for you, he carries you like a Princess, will hold your hand anywhere, anytime and he will hug you when he knows you're feeling down in the dumps

(Bad sanses)

Nightmare loves physical affection from you, and you only especially if his body is tired from battle, anyone else? Nope! Just you

Killer will be overly flirty with anyone and will immediately stop if he even has the slightest thought that you're uncomfortable with him doing that

Dust will be rude to you at times, but if he manages to make you cry, he will panick and do everything in his power to comfort you and to make you feel loved

Horror will often steal sweets from the fridge just to give it to you, and maybe eat some himself

Error despite having haphephobia will have you stand still and attempt to hold your hand without freaking out and crashing

Cross will be your personal knight, If anyone even looks at you the wrong way you probably won't ever see them again so you often have to tell him "and be nice" when you're meeting with other friends