hey nonny nonny

Beatrice: Sigh no more, ladies, sigh no more. Men were deceivers ever. One foot in sea and one on shore, to one thing constant never. Then sigh not so but let them go and be you blithe and bonny, converting all your sounds of woe into hey nonny nonny.

then...

Benedick: That a woman conceived me, I thank her; that she brought me up, I likewise give her most humble thanks: but that...all women shall pardon me. I will live a bachelor.

then...

Beatrice: Why then, God forgive me.
Benedick: What offence, sweet Beatrice?
Beatrice: You have stayed me in a happy hour, I was about to protest I loved you.
Benedick: And do it, with all thy heart.
Beatrice: I love you with so much of my heart, that none is left to protest!