natasha handcuffing herself to the bed

natasha having visceral reactions to disney movies and old American cartoons

natasha not reacting to the cold because she trained in the snow in shorts and a tank top

natasha hoarding her food

natasha seeing someone not eating for an extended period and fetching them something from the fridge and silently setting it down beside them and walking away before they notice

natasha reciting all the states in alphabetical order when tony jokingly suggests that none of the avengers could do it

natasha always counting everyone after major battles because she’s seen friends die too many times before

natasha having nightmares that she’ll do to her new friends what she was forced to do to the old