I had a girlfriend like that once
A story about an ex who was so bad, you almost wish they were dead.
Bro: 'My ex was like a bad movie. The plot made no sense, and it ended with a random punch.'
Sis: 'My ex was like a broken toilet. It never worked, and it always smelled bad.'
Cousin: 'My ex was like a bad burrito. It looked okay, but it tasted like regret.'