Headcanon Time: Memory~
Ryohei's memory isn't bad because he's flaky or impatient. His memory is bad because his brain is quite literally swiss cheese. He was beaten as a small child when he tried to defend his sister. He then subjected himself to hundreds, if not thousands of beatings as he grew up, training as a boxer. As good as he is when we first meet him, you know he got his ass kicked more than once.
As he ages and Colonello teaches him how to focus his Flames, his memory starts to improve... the Sun flames help to keep any further damage in check, though they can't repair what's already been done. Patience comes with maturity, and he's settled into his role as the 'idiot boxer' or the 'idiot Guardian', so honestly, he doesn't notice it much anymore.
The problem is that he's not an idiot. He IS impulsive, and that never really tempers much, but under the loudness, he knows that there are pieces of himself that are just missing. Words never come out quite right, he gets easily lost no matter how many times he goes somewhere, and every instruction needs to be written down so he can remember them. Knowing those gaps in his memory are there, knowing there are things he should be doing, or saying, words that work better than the overexcited jibberish that comes from his mouth, frustrates the hell out of him. Which, in turn, makes his recall even worse.
The things he does remember easily are muscle memory actions, and faces. He can throw a solid punch even if he's half-dead, because his muscles react even if his brain isn't working properly. He can't remember a name to save his life, but he remembers every face he's ever seen, and he remembers WHY he remembers them; friend, foe, rival, danger, help. He's also really good with dates... not so much what happened on the date, but that the date is important for some reason.
The only exception to this is his darling sister, Kyoko. He remembers EVERY SINGLE THING about her... her birthday, her favorite color, food, movie, music. He remembers the name of every boyfriend or possible boyfriend that's ever caught her eye, and he's remembered every single time that he's had to NOT kick the shit out of one of them because even though they made her cry, he promised her he wouldn't.
