The moment Cloud fell into her church and they escaped Reno, there is an instant chemistry between them that I didn’t see with Tifa. It’s like Aerith, the pretty girl in pink was the obvious love interest while Tifa is the supporting pretty tough girl that will be friendzoned. And it is true that meeting Aerith does send Cloud and the party into a series of events that will set their path for the entire game.
Aerith, being also the flirty very forward woman was scoring points with Cloud while Tifa was just there trying to aid him in whatever way she can. It’s also a bonus that Aerith was the last Cetra and Cloud resembled her first love thus setting new mysteries and plot advancement. What match can a childhood friend who has no special bloodline like Tifa to a heroine like Aerith who has a much grander role? Moreover, Aerith’s date was the default one.
When Tifa was just there being with Cloud, Aerith was separated from him when she went to the Forgotten Capital. This sets up a “man chasing a woman” feel to the game, especially when Cloud was running towards her in their dream.
Now when Cloud was supposed to reunite with Aerith the next step in the formula is ta love confession but then she was murdered. To many people, this is a classic romance cut short by evil.
I saw things differently. I think Aerith’s death was part of shattering the illusion. Aerith, the girl in the dress, the healer, the destined one was not just meant to be merely the love of the hero. She was to symbolize the harshness and realism of death and yet she would be a heroine that would triumph over evil because she was able to accomplish her mission. Despite this Aerith was able to see the real Cloud, she was able to love the real him under the illusion but she did not live long enough for her to see him come out of his shell. But when she could not be with him in life, her spirit continued to watch over him. It seems that when illusions can’t get in Aerith’s way, death can’t stop her also.
On Cloud’s part, the cocky hero was just an illusion formed from his best friend that was Aerith’s first love. I think the illusion that Aerith would be alive and together with Cloud comes with the shattering of the illusionary Cloud. He was nobody, probably just a clone, his memories of being a great SOLDIER were false and he’s lost his sense of himself.
Then Tifa comes in. True she does not possess the appearance of a healer like Aerith and was a fighter but she was the one who wanted to support Cloud and be by his side. So again, this is another illusion shattered. Tifa wasn’t just an action girl that is an accessory, she was to support Cloud not in combat alone but in finding his true self. She’s not meant for something that of a grand scale like Aerith’s role, but her role is a small, tender and intimate one with Cloud in the Lifestream when they shared bared their souls together.
Also, she was always there for Cloud from the beginning to the end, when he’s weak and when he’s strong, juxtaposing the fact that Cloud was the one who promised to help her when she’s a pinch. She wanted to be the damsel but she fought right beside him. She believed that he could be someone great way before anybody thought he could be. And she did get her wish and Cloud was also able to fulfill his promise to her.
Also, the real Cloud was just like her; extraordinary people from a simple background. The real Cloud wasn’t an accomplished SOLDIER but a country boy wanting impress a girl but failed. they were ordinary people who were victimized by Shinra and was forced to fight on because of what happened to them. Yet this simple, supposedly unimpressive but real Cloud was actually stronger than his illusion, defeating Sephiroth as he is.