In Act IV, scene v, what evidence is there that Friar Laurence's plan is working out exactly as he predicted it would?
The friar shows up at the Capulets' mansion the morning of the wedding and is ready to help them turn the wedding plans into a funeral. He first asks if the bride is ready to go to the church... he never asks what she might be going to the church for leaving the question perfectly ambiguous. We also see what seems to be a prepared speech in these words:
Peace, ho, for shame! confusion's cure lives not
In these confusions. Heaven and yourself
Had part in this fair maid; now heaven hath all,
And all the better is it for the maid:
Your part in her you could not keep from death,
But heaven keeps his part in eternal life.
The most you sought was her promotion;
For 'twas your heaven she should be advanced:
And weep ye now, seeing she is advanced
Above the clouds, as high as heaven itself?
O, in this love, you love your child so ill,
That you run mad, seeing that she is well:
She's not well married that lives married long;
But she's best married that dies married young.
Dry up your tears, and stick your rosemary
On this fair corse; and, as the custom is,
In all her best array bear her to church:
For though fond nature bids us an lament,
Yet nature's tears are reason's merriment.
He seems calm, and almost expectant. If I were to read in between the lines, I would believe he spoke with absolutely no feeling. He gives reason for her death and staged comfort to the parents. He tells them to stop crying and even puts the best construction on the situation by essentially saying that it is good for her that she gets to die young without the pain of the troubles of life.