SolVanderlyn
Thanos acquires the fully powered Infinity Gauntlet in The Avengers: Infinity War, but loses when all the superheroes team up together to stop him.
Yeah, you're right. This makes the optional scene in Gongaga even more sad, then, when they visit Zack's parents. If you have her in your party she mentions that she's worried about him because he's been missing, meaning that even though she sensed what she probably knew was his death she was still holding onto hope that he was out there somewhere. Even without the added scene from CC, you have the fact that she sensed Elmyra's husband's death, which means she definitely would have felt at least something when Zack died, too.Nah. She probably knew Zack died.
In fact when you visit Elmyra to check on Marlene to see if she's safe after the destruction of Sector 7, there is a whole flash back sequence, which Aerith basically tells her that her husband had died, and Elmyra getting a letter a few days later that confirmed it.
Like you said, I think the Cetra in general have a strong connection to the Lifestream and know in a 6th sense sort of way when certain individuals die and return to the planet.
That scene in general really shows that Aerith did have deeper feelings for Zack that extended a bit beyond youthful love.