A small difference there is also that while in the OG, Cloud is also clearly seen changing, in the Remake he's shown to actively make an effort to change. We see him reflect on his negative behavior, and try to force himself out of it, it's not just gradual without him noticing, it's the result of him interacting with people, reflecting, and adjusting.
The most obvious examples of this are with the High-five with Aerith, and comforting Tifa. Aerith wants to high-five, he doesn't do it, she's hurt, he looks at his hand, he reflects, and then adjusts, and afterwards he's shown doing it without a struggle.
With Tifa she's in pain, he can't react, he looks at his hands, then adjusts, and forces himself to do the right thing.
Marle Chides him, he listens to Tifa in "alone at last".
He remembers the promise, and actively goes back on his earlier dismissal in order to be better.
But it's also extremely clear with the trio, which I didn't expect. Tifa tells him to play nice, and when going with Jessie, Biggs, and Wedge, when given the option not to hear jessies story, he goes "no, I wanna hear it". That's him actively trying to be better. When he goes from ignoring Wedge to telling him he should be proud, that's not Cloud being different, and acting the way he is now, no, that's still him out of his comfort zone, but actively going out of his way to BE out of his comfort zone.
Remake Cloud isn't being changed by other people, he's changing himself FOR other people. And in that drive, I see "real Cloud" wanting to come out.
