Tbh, I never play the game, but it doesn't stop me to know the lore since I love that kind of thing. So I don't mind getting spoiler, but that just me. I don't think remake will that different with original in term of story telling.
I agree that Crisis Core/ Advent Children is more socially awkward than shy. I don't think game Cloud is all that socially awkward. Crisis Core/Advent Children Cloud is not necesarrily the same Cloud as in the game. I think they made him too brooding. He's got things that weigh him down but he didn't seem that down after said mindscrew.
Um... should we say the mindscrew is spoiler territory for new players now since it's going to get remade? Thoughts?
I still think, last order/crisis core is what cloud originally behave.
In ff7, he's cloud with zack memory/personality.
In advent children he become brooding because geo stigma(?) and his guilt to the dead of aerith and zack.
Well atleast it's not Zidane identity crisis level.