Rin
Pro Adventurer
Cloud is honorable, underneath it all. The chances of him understanding how much Aerith meant to Zack and yet deciding to nevertheless pursue a relationship with her, never mind the harm such a relationship would deal to everyone else, is zero. It's narratively unthinkable, a character assassination that simply would not happen in the genre and certainly not in a labor of love like the Remake trilogy.
Such a good post as always, Hix. This part in particular brings me back to a tweet I made earlier this year about my personal feelings toward CA and why it doesn't work for me romantically. Cloud loves Zack. He loves him to the point of being unable to accept and face his death. He loves him so much that he would rather erase him and emulate him vs. live in the constant pain, grief, and suffering of remembering that loss. He can't take it. He vowed not to forget but he couldn't function while knowing the truth.
While he's in a better place (barely) now, remembering Zack in Nibelheim triggers something in him. On the date with Aerith at Gold Saucer, he won't even look her in the eye. He can't face her. He's carrying so much guilt and shame just knowing that Zack is dead and will never come home to her. And there's no doubt that he's uncomfortable with the idea that he reminds her so much of Zack; he basically starts squirming immediately when she says so and asks if Tifa has talked to her yet.
Just the idea of being on a date with his dead friends girlfriend is causing him emotional distress and it's always been interesting to me that certain fans believe he could just move on from that w/o a second thought. This is the same guy who gets crushed under his survivors guilt two years later and begins wondering if he ever deserved a happy ending at all, because why should he when he 1) forgot Zack and 2) "Let Aerith die"? Being in a relationship with Aerith would wreck him, honestly, and that's not something I want for him or for her.
And, on that same note, I have a hard time believing that Aerith's feelings for Cloud could continue to grow romantically once she learned the full story of what happened. I don't believe she would hold a grudge against Cloud for Zack's death because she's not that kind of person, but she's also not perfect and she would need to reconcile with the fact that Zack is gone because he was protecting Cloud. That's the type of man Zack was, so it's a fitting end for him but it wouldn't make it any less difficult for her to know about. So, every time she looks at Cloud she'll be forced to face that fact.
This is the same girl who couldn't talk to him after seeing Nibelheim because she was angry about her own life circumstances, so I think there would be a time where Aerith probably couldn't look at Cloud for a while yet. And then where exactly would they take it from there? Real Cloud would be apologetic and guilt-ridden about "playing SOLDIER" in the wake of Zack's death and Aerith would then be in a position of having to make Cloud feel better about all of that, which is pretty unfair to her. I don't see how their relationship could recover enough from all of that to enter a romantic relationship. Their friendship could bounce back, absolutely, but ... to be in a committed, loving relationship seems very unrealistic to me.
And that's not even taking into consideration that Cloud at his core is just Tifa Tifa Tifa Tifa Tifa Tifa.