Keigo has been in love with you for a long time but he never dared to tell you...
Why ?
He has never been in a relationship, and he has never received affection, whether friendly, familial, or romantic, he knows nothing about love...
But after the war, Keigo cracked, you almost died and so did he, so he confessed it to you.
And now you're a couple.
Keigo has a hard time expressing his love to you, he loves you so much, more than anything in the world, but it's complicated for him, it's new, but he tries, he learns, sometimes he acts a little weird but you find it cute, he just doesn't know how to do it.
Just like now...
Keigo invited you over to his place, and you're currently watching a movie, then you snuggled up to him.
He froze for a moment, then he let his hands fly over your body not knowing where he should put his hands, he ended up putting one in your hair and the other on your waist.