The rival between the two families
who is to blame for the double suicide
Romeo Hatfield & Juliet McCoy
The Hatfield's and McCoy's T.V. series resembles Romeo and Juliet almost perfectly because The Hatfield's and McCoy's had a brutal rivalry just like the families of Romeo and Juliet. In the play/book "Romeo and Juliet" it quotes,"Uncle, this is a Montague, our foe, a villain that is hither come in spite, to scorn at our solemnity this night,"(Shakespeare Act 1, Scene 5). Which roughly translates to "it's a montague our rivals, he's a villain.
Family members from the Hatfield's were banned or "forbidden" to see family members from the McCoy's, just like in Romeo and Juliet. "Romeo and Juliet" says,"Tis but thy name that is my enemy....If they see thee, they will murder thee,"(Shakespeare Act 2, scene 2). That quote means that if Juliet's family catches him then they will kill him because he is not allowed to speak to her family.
In conclusion, The Rivalry between the two families is what caused the deaths of Romeo and Juliet because if it wasn't for the feud, they could get married and there would be no fighting and they both could lie happily ever after. But that didn't happen.