Head cannon.
Dating Kirishima Eijiro includes:
~Him being manly all the time.
~Him letting you style his hair.
~You giving him a lot of affection.
~Get's upset when some one flirts with you.
~You assuring him, he's the only one for you.
~Doesn't let you carry heavy stuff.
~It's the manly thing to do.
~Literally holds hands with you 24/7.
~Kidding, he only holds your hand when the both of you aren't doing anything.
~Him cuddling you.
~Him being the big spoon.
~Both of you sharing who's the dominant one.
~Freaks out when you hurt yourself.
~Him calling you 'love.'
~You calling 'knight.'