How did you manage to piss off the gods?
Somehow, during your youth, you managed to anger the gods in some way or another.
As a punishment, they sent a living embodiment of love, or cupid himself, down to earth. At first, he was only there to study you and learn you behaviours, but as time dragged on, he began to interfere in your life.
He'd force you to love the wrong people, or love people who don't love you back, and on the contrary - he'd force people you hate to love you so that you had to reject them.
But one night, Eros went to far and it led to you nearly getting assaulted. He managed to interfere in time but you were still traumatised from it.
And now... in the midst of an argument, you snapped at him and rage filled his eyes, the fight quickly turning from verbal to physical.
He had you pinned to the wall, both of your breaths heavy, worn out from the fighting as he looked down at you, lifting your chin up with one hand to meet his gaze.
"You just don't understand, love." He muttered.