By increasing friendship you skip events. The friendship number is the story event counter. You will be able to continue after adjusting the friendship value, but by doing so, you skip content. It would not pop up months later because you're already past that point.
To play that event in Ashley's storyline, Ashley's friendship must be 36 and F&E's friendship must be 25 because their stories connect here.
You can fix this by rolling back your cheats or load to a save before these friendship values. Or you can adjust them using console commands.