Being a crucial key in the two lover’s fate, without the Friar, there wouldn’t be a Romeo and Juliet. In hopes of ending the feud of the houses, he hatched a plan and married Romeo and Juliet. When things went wrong AGAIN, he hatched another plan, and gave Juliet the potion that made her appear dead, tricking Romeo into killing himself. She woke up, and meet the Friar, who then left her in a broken, dark state, causing her to do what she said she was gonna do, upon meeting the Friar in his cell after Romeo's banishment, and the news coming out where she is gonna marry Paris,
“And I will do it without fear or doubt,
To live an unstained wife to my sweet love.” (Act 4, Scene 1, 90, Juliet)
Or kill herself. And she did. He knew what was happening
“And I will do it without fear or doubt,
To live an unstained wife to my sweet love.” (Act 4, Scene 1, 90, Juliet)
Or kill herself. And she did. He knew what was happening