Beatrice is motivated by love, trying to not show love but is wanting someone to fall in love. Even though she cant find a man for herself. Beatrice is helping Hero get her love story. At the beginning of the play she says to Benedick, "A dear happiness to women. They would else have been troubled with a pernicious suitor. I thank God and my cold blood I am of your humor for that. I had rather hear my dog bark at a crow than a man swear he loves me." She's trying to be cold hearted and show no emotion towards benedick or any man. Also Beatrice mentions "No, my lord, unless I might have another for working days.Your Grace is too costly to wear every day. But I beseech your Grace pardon me. I was born to speak all mirth and no matter."
How Beatrice Develops
Beatrice changed throughout the play. In the beginning, Beatrice is cold hearted towards Benedick and rejects any man. Then towards the end, she comes to realize she's been in love with Benedick all those years they've been insulting themselves. Beatrice shows her love for Benedick and confesses.