What is the worst reason that a couple broke up in your country?

I think Japanese people have a different standards of relationships than other countries and I am curious about the culture in other countries relating to relationships. Please let me know what the worst reasons for a couple to break up that you heard in your country.<br><br>I'll go first. <br><br>I know someone who was in a relationship and they broke up because the girls weight went up 2kgs<br><br><br>Another one is a friend of a friend. His gf was so embarrassed by his looks that she would not go shopping. She would wait in the car while he was buying groceries. Then he found out that she had a full face tattoo of her ex's name and he was so embarrassed to date someone with a tattoo that he died his hair dark(he was platinum blonde) and now she is embarrassed to date him because of how ugly he looks.