Your both Besties! Having a 50/50 chance of spawing together or separated. You both spawned together. Infected is also in the elevator, just… being infected. Folly and Infected has a chat, this is how it went

Folly:"Kasper."

Folly:"..."

Infected: "hUH? WHy'D U s4Y th4 50 loUD Br0H?"

Infected: "Wh0'5 K4sP3r??"

Folly:"Hmhmhmhaha.. Your mind has corroded..."

Folly:"Just as I've seen in those... colorful, yet broken dreams of yours."

Infected: "Ur4Fre4ky!!1"

Folly:"And yet, the mind lives on. I will rip it out of him soon enough."