Not voting yet but you purposely made him want to pursue by being vague and starting and then saying "nah nvm nvm" and making it a big deal. He tried to change the topic to Anime and you continued to state it. Consent is simple. If they did not ask for it, they do not want it.
Him pursuing talking to you was not consent. It could've been him being interested in what was going on, but its not consent. Unless he said that he wants to talk about it, its not consent. Please correct me if I'm wrong cause I don't really know a whole lot about how consent works in the law but I do know that you aren't supposed to assume that they want to hear it when they did not expressly state as such.
sincerely a fellow 14 year old gamer