If they met in a different way but with the same personalities and characteristics, they would be the same person. If a cruel person who doesn't care about love meets an emotional person, he will fall in love with him.
Y/N has been diagnosed with mood swings, really bad ones. One day she is happy, the next it's like she is a completely different girl.
This explains why people don't hang around with her much, they don't understand.
That is until she meets 7 boys who change her life for the better.