I Thought I Could Trust You is a video on the Poppy YouTube channel. It is the 186th video of the Poppy era. It was uploaded on April 9th, 2017.
In the video, Charlotte attempts to lie to Plant in order to get money for drugs. She claims that her child is sick and she is trying to raise money for him. Plant responds that though he wishes he could help Charlotte, he cannot, as plants do not use money. This disappoints Charlotte, as she thought Plant was her friend and would help her. She then degrades Plant, saying that he is "just like everyone else" and is "just a plant", therefore would not understand. This inclines Plant to call out Charlotte for saying an expletive to Poppy in the video "I Am Not Sick", which Charlotte denies having said.
- Though censored, this is one of only four Poppy videos to contain profanity, not counting any profanity in Poppy's songs. The other videos to contain profanity are "I Am Not Sick", in which Charlotte says the expletive to Poppy that Plant quotes in this video, "What Are You Doing?", where Charlotte says the same expletive to Plant, and "I Invented Tap Dancing", where a man's voice can be heard saying "this is bullshit".