what causes this change?

_Nurse._ Now if I would be hang'd, I cannot forbear telling.
Faith, my Lord, _Gerardo_'s like to be the Man now,
Though I am for your Lordship still, you're my best Friend.

_Fran._ By heav'n I'le be his Death, and hers to boot;
Can she slight me for him, he Whore our Kindred!
When did he first enjoy her?

_Nurse._ Not so, my Lord, he's to Marry her.

_Fran._ Nay, if't be so; then I'm Reveng'd already,
For's joyning with _Antonio_ 'gainst our house,
He's Antidated Cuckold, and by me!
O rare Revenge! There's for thy News, Nurse.
[Gives money to her.
Were all my Enemies but serv'd the same;
At a more full Revenge I'de never aim.

_Nurse._ Me-thinks you should not be so merry for losing my
Lady; 'faith, had I known it, you should not have come
Into the place you wot'on, by my means.

_Fran._ Nay, be not angry, Nurse, I find her drift.
She loves our family, and studies to Revenge it.
To make him Cuckold; how it pleases me!
Poyson, nor Poniards is not half so well,
Go, tell her; Nurse I'm glad she takes this way:
I glory in her love! by Heaven I do,
I'le find Sebastian out, and laugh with him,
Till I e'en split my sides.

_Nurse._ Sir, you'le tell no body I hope.

_Fran._ No, none but him:
To say as he goes by, there goes my Cuckold;
And then to laugh, go Nurse, and tell her
I'le be sure to meet--
[Exit.

_Nurse._ Another double Pistoll for my _Jasper_!
I'le have him one whole night for this.
For to speak truth, I find the Rogue does not love me:
Heavens! What a bad world is this,
An Old Woman, though never so willing,
Can scarce get a friend for ready money:
When such as _Eugenia_ can make the Gold fly about;
But time will come she must be fain to turn tail,
And pay for one as I do, or go without.
But it pleases me, my Lady says, he shall be my husband,
Then I shall need give money no longer: for faith if he
Be negligent, I'le ring him a Peal to quicken him to his duty.
Thus marry'd once, I'le doe like other wives
That make their husbands drudge for quiet lives.

_The End of the Second Act._

Act the Third.

_Enter _Don Gerardo_ with a Book in his Hand._

Song.

1.

_Some Happy Soul come down and tell
What Joys are those with you do dwell?
If it be Happiness like ours below,
Which from our want of ills does only flow,
Then 'tis plain that mighty theam
Of Immortality is but a Dream_.

2.

_'Tis Love, 'tis Lov