Endearing Performance

You serenade a creature that is not hostile towards you for one minute. Your song fills them with a sense of pleasure and admiration once the performance is complete. For the duration, you have advantage on all Charisma checks directed at one creature of your choice. When the spell ends, the creature realizes that you used your song to influence its mood and feels manipulated, but does not know you used magic.

The creature can make an Intelligence (Arcana)  check against your spell save DC, and on a success they also know you used magic to trick them and become hostile toward you. A creature prone to violence might attack you. Another creature might seek retribution in other ways (at the DM’s discretion), depending on the nature of your interaction with it.