Romeo, the Only son of Sir Montague, didn't care about the Feud, only his love for Lady Rosaline, A Capulet
Sir Capulet was approached by Paris, a man who wanted to marry his only daughter
They decided they should throw a ball so that Paris and Juliet could meet
Romeo decided to crash the party to go see his love Rosaline, But when he sees Juliet, it is love at first sight.
They decide to get married, but Juliet's father wouldn't allow it, so he moved the wedding of Paris and Juliet forward.
Jueliet didnt want that to happen, so she took a potion that would make her fall asleep for 48 hours to make everyone think she was dead, all this happened while Romeo was out of town, and he didnt know that she was only asleep.
Romeo thought she was dead, and didnt want to live without her, so he took poison so that he would be with her, but she she woke up and saw him dead, she killed herself so that they could be together.