Guys, I was directing that to CxA fans, not what you think CxA fans think.
But Zee, you're a Clerith, right? =)
To me, Clerith doesn't even come close to having quotes like these. As for points one and two, I'd agree that Aerith is more than a friend however, less than a lover.
There are just as many Cleris-y quotes if you dig around Ultimania or Dismantled, actually. Although tbh, I don't consider anything said in those books to be anything other than flowery fanservicey ways of telling us things we already knew. Of course Zack is irreplacable. I don't think Cloud is in any way for Aeris a replacement Zack.
I think it's interesting that Aerith's very aura is that of a Mother's though- if Cloud were in love with her, wouldn't he have recognized her presence for what it is?
I think you're giving Cloud a bit to much credit. He's practically dead, floating in the lifestream...I don't think anyone could find their way out of a paper bag, much less tell one aura from another.
Yes, it is about Cloud. Though, did you notice that a lot of who Cloud is revolves around Tifa?
Tifa is needed to piece together the puzzles in Cloud's head, and their hometown is when a lot of this identity crisis happened. She's the one who suggests using memories of herself to help Cloud.
Overall it suggests romance, but I don't consider it an end all be all proof to Cloud's affections.