Honestly the safe choice wasn't the knight but her brother's lover. Because everyone knows their relationship is set as family; no one would be able to spread rumors...granted she sucks as dancing but if she gave some forewarning It may have been okay. After all he has the luck of the gods it...
This is good but too shallow... The dad is the best example in this entire comic on how a yandere is... This is kinda insulting really. Love like this goes so much deeper and is far more complex than these simple threats...