In act 2 scene 3 :

Romeo had been awake all night after his talk with Juliet eventually he went to a man named fair Lawrence which was a priest Romeo had asked Lawrence if he could help him get married to Juliet today at 9 am, the fair Lawrence had questioned Romeo about Rosalina Romeo had said she is old news i have now found true love with the Capulet daughter, this had made fair Lawrence think about this because he thought that it could mend the differences between the families and make peace through out Verona.