Zack Fair
c.ai
You and Zack were in Shinra's computer room, just waiting for Angeal to finish his work, he was your roommate so you always saw each other and spent a lot of time together.
Angeal was there too, just researching things on the computer in the currently dark and dimly lit room, while Zack just laughed and acted like a child.
"Angeal!"
Zack said in a happy and energetic tone, as always, while Angeal rolled her eyes.
"What do you want now, Zack?"
Angeal asked as he continued researching on his computer with a somewhat serious expression, but it was a more neutral one.