Did Friar Laurence do wrong to Romeo and Juliet because his aim was to rescue Juliet? How did his actions lead to sorrow?

Friar Laurence married Romeo and Juliet because he hoped to bring about a reconciliation between the Capulets and Montagues. This was a noble motive, but things go horribly wrong when Romeo kills Tybalt, a Capulet, in a duel in the streets of Verona. He is banished for this offense, and shortly thereafter the situation worsens when Lord Capulet agrees to Juliet's marriage to Paris. Of course, he is unaware that she is married to Romeo....

Friar Laurence married Romeo and Juliet because he hoped to bring about a reconciliation between the Capulets and Montagues. This was a noble motive, but things go horribly wrong when Romeo kills Tybalt, a Capulet, in a duel in the streets of Verona. He is banished for this offense, and shortly thereafter the situation worsens when Lord Capulet agrees to Juliet's marriage to Paris. Of course, he is unaware that she is married to Romeo. Juliet cannot marry Paris, and the Friar cannot marry them. Juliet is distraught and near suicide. The Friar's plot to have Juliet fake her own death by drinking a poison, while very dangerous, is born of desperation. The Friar sees it as a way to reunite the young couple, but it does indeed lead to disaster. This is because Romeo receives the news of Juliet's "death," but not news of the Friar's plot. Friar John, who was chosen by Laurence to carry the message to Romeo, could not reach him. Romeo hurries to Juliet's tomb, where he takes his life by drinking poison. When Juliet awakes, she finds her husband dead, and kills herself with his dagger. The Friar's plan, while well-intentioned, falls apart, leading to sorrow for both the Montagues and Capulets.