It's a conflict of interest. Where on one hand she knows what she should do and on the other there's something that she wants. Since there's the option for own personal gains with the two, it's conflict of interest.
If you count the number of seconds between the flash of lightning and the sound of thunder, and then divide by 5, you'll get the distance in miles to the lightning: 5 seconds = 1 mile, 15 seconds = 3 miles, 0 seconds = very close. Keep in mind that you should be in a safe place while counting.
Friar Laurene tries to delay the marriage by questioning the marriage and asking if it is going to fast. Friar Lawrence tries to delay the marriage of Paris and Juliet by questioning Paris about why the marriage is occurring so soon since he and Juliet have not even met.
