the only reason is that Romeo was a Montague and Juliet was a Capulet which means that they are on different sides so that makes them enemy's.
Romeo and Juliet get married.
Romeo and Juliet
Friar Laurence married off Romeo and Juliet.
Romeo, and Juliet.
After Romeo and Juliet married Romeo owned Juliet and everything she owed as well.
One reason is because Juliet is only 13 and Romeo not much older, and young marriage is risky business.
Friar Lawrence married Romeo and Juliet in his cell.
He was the priest that married Romeo and Juliet.
Juliet is 13; it's not clear how old Romeo is.
Juliet sends her Nurse to find out if she is to be married to Romeo.
he got married in Italy
So that Romeo can talk to the Nurse and tell where and when Romeo and Juliet will be married.