Hanako's affection requirement is an arbitrary requirement for "Hide and Seek," as it is set to play depending on her affection levels, and not whether "I Trust You" has been played,
As for having played "PVR" as a standalone event, that's heckin' weird as I don't have any triggers that would start that event in an point except following "Hide and Seek."
Thank you for pointing this out though. I shall look into it. :)