That's BS. Are you saying Tifa grew up with Zack? Aeris might be sweet on Cloud because of his resemblance to Zack, but Tifa actually KNOWS Cloud. Knew him well enough to SEE that he was acting like someone else. False memories. But she had enough forsight to not mention it and stayed by his side to learn more and eventually coax his subconcious back to his real persona. Cloud is Cloud. He certainly had experiments done to him involving Sephiroth and the attempt to re-create what they did with Seph, but he wasn't grown in a tube. As far as I'm aware he didn't even have the tattoo himself. Granted it's been years since I touched FF7 but it was a favorite of mine. I'm not even going to attempt to explain things I know nothing about. But Cloud deffinitely grew up with Tifa. It wasn't a figment of his imagination (even though most things he remembers are).