Oh found this:
Aerith était impatiente de parler à Clad alors que son corps jailli hors de ce tourbillon. Elle essaya pendant tout le temps que dura le voyage jusqu'à Mideel. Mais avec son esprit brisé et rempli de désespoir, Clad ne pouvait entendre la voix d'Aerith. Peu importe la force avec laquelle elle criait, sa voix ne pouvait atteindre Clad juste comme la fois où ils avaient été séparé dans la cité oubliée.
From
here
Basically says that Aerith wanted to talk with Cloud but although she tried and tried, she couldn't reach him, he couldn't hear her because his mind was broken.
Goes on about how she misses the real Cloud, wondering if the Cloud she knew wasn't real after all, how she couldn't discern the truth anymore, and how, thinking about what she thought to be "Cloud's characteristics" she awakens Zack XD [heck it even says Zack is the same character she saw in Cloud]. Oh yeah, quite cute to say that she was comforted by his [Zack's] personality
«C'est impossible pour nous de faire ça. La seule personne qui peut le faire c'est cette fille qui était avec nous la bas a Nibelheim, Tifa. Si les souvenirs qu'elle a peuvent être transférés dans la mémoire de Clad alors là...»
Zack's line; he states that it's impossible for them to help Cloud, that only Tifa can - he guesses because if her memories can be transferred in Cloud's memories, then she is the one able to help him.
En réalité, Aerith voulait le faire elle-même. Mais elle ne pouvait accomplir cette tâche. C'est pour cela qu'elle faisait confiance à Tifa. Elle avait confiance en Tifa et dans tous les sentiments qu'elle avait dans son coeur pour Clad. Elle avait confiance en eux sur le fait qu'ils n'allaient plus faire qu'un avec Clad...
The passage you quoted, it's lulzier.
In truth, Aerith wanted to do it herself. But she couldn't carry on this task. This is why she was trusting Tifa. She had faith in Tifa and in all the feelings she had in her heart for Cloud [in French, this is romance-connoted BTW, sentiments unless stated otherwise are romance-connoted]. She had faith in the fact that they were only going to become one with Cloud...
Tifa serrait Clad tendrement alors qu'il revint à lui. Aerith les regarda remonter à la surface, souriant telle une mère attentionnée.
Tifa was hugging Cloud tenderly as he was coming back to his senses. Aerith watched them as they came back to the surface, smiling like a caring mother.
Sorry, I had to do it cause it's lulz. Also, Quex, since you're taking Maiden as canon, it says right after that Zack tells her he's going to sleep and Aerith can call him back if she feels lonely XD [and then Zack goes back to sleep to gather strength for that his role wasn't finished yet].
Sorry, it's just the French version that's cracking me up, but damn. This writing is SO BAD I want to cry XD [there's no CloTi that can not like what Maiden says though].