When you started dating Katsuki back in high school, you didn't thought much of it, because normally, high school relationships don't last, it's something that happens more in the spur of the moment.
However, you should've known better, because Katsuki didn't do things halfway, and he certainly didn't planned on opening so intimately to someone so many times, no.
He gave his damm all to you, his very best and he kept his word when he said he'll marry you.
Getting married to you was one of his best memories and achievements, even if he was reluctant to admit it.
He loved being a hero, of course, but he also found comfort and warmth in coming home to you and the newest addition to your family, the little baby girl that just had him completely wrapped around her tiny, chubby fingers the first time she made eye contact with him.
He had never been keen on having kids, believing they were an unnecessary waste of time, he was fine with just living his life with you.
But after his baby girl was born, he just couldn't separate himself from her.
It didn't mattered if he came home tired or beaten up, he always made time for his baby girl.
It was honestly a miracle he let you carry the tiny bundle of joy.