Loving and missing Aerith is different than jerking off to her to the exclusion of time spent with Tifa. And that's the difference I think people are going for.
Or calling Tifa "Aerith" during sexytime
Or being so vile as to tell the woman who is in love with him (and he knows it) to live together, to tell her that he feels he can do right in his life "now that [he] has [her]" (CoT) while he's pinning after someone else (dead or alive, it doesn't matter). It's playing with someone's emotions, it's borderline
evil to do that. Bella Swan from Twilight does this and she's a psychopath.
If that was the case, then this version of Cloud ought to be hanged by his toes in the middle of Edge, stripped off his clothes in broad daylight, while people throw rotten tomatoes and bad eggs at him.
And then some.
Also, I'll come out and say it: I
DON'T see Cloud remembering Aerith with any fondness before the end of ACC.
And before any panties get twisted,
not because Aerith did a bad impression on him while she was alive or anything like this, but because he was
zeroing/focusing at the fact that she was killed in front of him, while he was responsible for her safety (to say the least, apart from the fact that she was at least his friend and companion). In other words, guilt consumed him so much, that he couldn't think of her in any other way. (One of the Ultimanias say that she's a symbol of his failures and that his guilt over her death is one of the main reasons he closes himself and then feels lonely. But then again, Ultimanias were always DUH! material to me, because I only saw them pointing out the obvious.)
It is only at the end of ACC that he was able to look at her face to face (before he wouldn't even turn around and he flinched away from her touch on his Geostigma mark, even though he knows her hands are healing). It is only at the end of ACC that the wolf, Cloud's symbol of his guilt leaves (again, some official source says that that was the moment Cloud was able to forgive himself) and he's free from it. I can see him remembering a living, smiling, teasing, full of colour and flowers Aerith with fondness only after this end.
...
But that's just me.