Interestingly, Juliet at first is the voice of common sense, knowing that a love affair with Romeo can be dangerous because of the enmity of their respective families. She wishes to be cautious and not as fickle as the "inconstant moon." Nonetheless, she succumbs to her own passions and she and Romeo marry after only knowing each other for a day. This impetuous passion leads to other precipitant actions such as Romeo's slaying of Tybalt in anger, and Juliet's desperate drinking of the potion to avoid marrying Paris. Indeed, the "violent delights" of Juliet and Romeo lead to "violent ends."
In the Leonardo Di Capprio version of the play done in 1996, Juliet says these words while she's making out with Romeo and deciding whether or not she wants to commit to him. The action here suggests that she is getting caught up in the physicality and emotional sides of the developing relationship, but she is also having a fight with her brain, or her rational side, in order to make sense of what's going on around her. This is typical and universal human thinking when presented with such lust and the quickness of a fast-moving relationship.
Everyone rushes into things in Romeo and Juliet. It's easy to say they were too young, and they didn't know what they were doing. But look at Paris, who wanted to fight Mercutio for no reason! The worst offenders of all were Juliet's parents, because they could have waited instead of forcing her to marry Paris.
I would say that Romeo's feelings for Juliet is especially ill-advised and rushed. Let us not forget that on the day he met and fell in love with Juliet he was bemoaning the unrequited love which he felt for the fair Rosaline. In fact his friends had taken him to a party to cheer him up. One glance at Juliet and he was in love. Really?
I'd say that everything that happens in the play is rushed or ill-advised. Romeo and Juliet's love, in particular, is rushed. Friar Lawrence's plan is terribly ill-advised. No one seems to stop and think calmly, which is one reason everything ends as badly as it does.