I think it was around when Athena was stuck in the despair spiral and Wriggle was trying to pull her out of it because she couldn't understand why anyone wouldn't do everything they could to survive
And I think she started to realise the only way she was going to get out of it was to cooperate with everyone because she was definitely going to get caught if she murdered everyone.
Wriggle never really hated humans that much to begin with but if it was kill or be killed she was going to try and make it easy as possible by distancing herself from everyone.
Like right after she was very... conflicted. Like she was angry with what Austria did but after listening to the others she could sort of understand why.