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Is this monologue in blank verse?

Basically, I need a monologue that is in blank verse. I understand that blank verse is verse that has metre but doesn't rhyme, but I have trouble processing language so I can't always recognise metre that well. I'm pretty sure it's iambic pentametre, but can you please tell me if I'm right and if this is blank verse or not?

Monologue in question:
Ah, Gloster, teach me to forgetmyself!
For whilst I think I am thy married wife,
And thou a prince, protector of this land,
Methinks I should not thus be led along,
Mail’d up in shame, with papers on my back,
And follow’d with a rabble that rejoice
To see my tears and hear my deep-fet groans.
The ruthless flint doth cut my tender feet,
And when I start, the envious people laugh
And bid me be advised how I tread.
Ah, Humphrey, can I bear this shameful yoke?
Throw’st thou that e’er I’ll look upon the world,
Or count them happy that enjoy the sun?
No; dark shall be my light and night my day;
To think upon my pomp shall be my hell.
Sometimes I’ll say, I am Duke Humphrey’s wife,
And he a prince and ruler of the land;
Yet so he rul’d and such a prince he was
As he stood by whilst I, his forlorn duchess,
Was made a wonder and a pointing-stock
To every idle rascal follower.
But be thou mild and blush not at my shame,
Nor stir at nothing till the axe of death
Hang over thee, as, sure, it shortly will;
For Suffolk, he that can do all in all
With her that hateth thee and hates us all,
And York, and impious Beaufort, that false priest,
Have all lim’d bushes to betray thy wings,
And, fly though how thou canst, they’ll tangle thee;
But fear not thou until they foot be snar’d,
Nor never seek prevention of thy foes