Nothing is known about Colette's life before the outbreak began, except she lived with her sister Elodie and her father Dominic.
Nothing is known about Colette's life after the outbreak began. It is implied that she died before the events of the game however no concrete evidence supporting her fate has been found. Nonetheless, she plagues her mother in the form of hallucinations.
"No! She'll come look for us! We have to stay here!"
—Colette to Dominic about Michonne. (Hallucination)[src]
Dominic is Colette's father so it can be assumed that they had a normal father-daughter relationship. She was with her father around the start of the apocalypse. Dominic packed supplies and told her they had to leave. Since she is was daughter, Dominic was protecting her.
Alive characters appear in green. Dead characters appear in red and italics. Unknown characters appear in blue. Undead characters appear in grey and italics. Determinant characters appear in purple. With italics, determinant characters either die or turn undead. Without italics, determinant characters either die, stay alive or are left with unknown status.