Capulet forced Juliet to marry Paris. Capulet said to Juliet “Ay, marry, go i say, and fetch him hither. Now afore God, this reverend holy Friar, all our whole city is much bound to him.”. He is telling Juliet that she will be married to Paris wether she liked it or not. In the Elizabethan era girls would also be forced to marry a men to their fathers choosing.
Juliet drinks the potion that puts her to sleep. When she is alone in her room she says “My dismal scene i needs act alone. Come, vial.”. She decides on her own to drink the potion so she can be with Romeo.