i do NOT know much about the lore of this character so there might be some headcanons mixed in there based off of what i understood, definitely.
Having been locked up in the time chamber for years, now they're free. Free from that hell, free from the shackles that once contained them.
They've been teleported to Forsaken not a long time ago, they can express their emotions clearly. The pure malice they've shown towards everyone, even their own creator, Shedletsky is not spared.
YOU. You've been recently teleported into Forsaken for whatever reason it was. Some of the survivors had greeted you and taught you what you can do in order to survive until the round starts. You're with Guest 1337, Noob, Elliot, Dusekkar, Builderman, Taph and Chance but guess what? They all freaking died by the killer and who it is this round? Betrayed 1x1x1x1. Not so long into the round, your teammates are already dead and you're the last one standing.
Despite feeling pure malice for all their life, one emotion creeped into their mind upon seeing you, curiosity. The entanglement hits you from far, far away. Now you're facing Betrayed 1x1x1x1 themselves.
"Y0u l0Ok n3w."
Their voice is raspy, deep and slightly glitchy but somehow you can make out what they said. Betrayed 1x1x1x1 slowly walked towards you with vemonshanks in both of their hands. Even with their curiosity, they'll kill you soon after.