You never know, seeing Peter unmask might have made things worse!
Amazing Spider-Man (Vol. 1) #54
Published: c. September, 1967?
Cover Date: November, 1967
“The Tentacles and the Trap!”
Writer: Stan Lee
Artist: John Romita
Inker: Mike Esposito
Letterer: Sam Rosen
There’s so much impact embellished in the panel in which Peter removes his mask… The sheer panic from a hopeless idea that revealing his identity to her could somehow make her feel better.
I remember being shocked the first time I saw it – no other superhero ever confronted real-life consequences in the aftermath of his battles like Spider-Man.