Kill herself.
They plan for Juliet to marry Paris
Juliet is upset and refuses to marry Paris. She tells her mother that she cannot love him and that she would rather die than marry someone she does not love.
Capulet's announcement of Juliet and Paris's marriage is ironic because he made the decision the morning of Juliet's wedding night. Juliet tries to resist the marriage because she is already married to Romeo.
Juliet was suppose to marry Paris.
Paris has to get Juliet to like him.
Paris wanted to marry Juliet. Romeo succeeded.
Juliet's Dad, and her entire family in fact, want her to marry Paris.
Juliet's father, Lord Capulet, insists that Juliet marry Paris. He believes that Paris is a suitable match for his daughter and does not understand Juliet's hesitation.
Romeo isn't destined to marry anyone. He does fall in love with Juliet. Juliet is the one that is destined to marry Paris.
Juliet threatens to marry Romeo before she would ever marry Paris.
He promises Paris that Juliet will agree to marry him. He does this without consulting Juliet first.
After Juliet refuses to marry Paris, Capulet tells her that she will marry Paris or she will no longer be welcome in his home.