Because Peter has the suit before Eddie and got it off him by chance being next to really big bells going off.
When Eddie Brock in the suit went after him, he had to figure that out.
Note: The suit never wanted to kill him only Brock wanted him to suffer, the symbionts honestly WANTS Pete as a host.
"But... But I want to be a big karate cyborg... ;_;" - Nik Hasta
"Get off my lawn! ...on this forum, that just makes people think of Cyclops." - Sharpandpointies
"...makes me think the Night King just says "Screw the rules, I have magic money" when it comes to physics." -Captain Morgan