Flowerfell: You meet Sans, Frisk, and Flowey in Judgement Hall. You battle Sans to hopefully stop him from getting to Asgore. In a way, you were kinda saving Frisk.

(SHIT it's sideways)

EchoFell: You became a sinner. Well done.

GZFell: You grew up seeing Sans and Papyrus fight. When you take the pills you stole, you run away and wish to never see Sans or Papyrus. You basically think you can't trust anyone.