How does Beatrice treat Benedick when she calls him to dinner? How does he interpret this?

Benedick determines to be kind to Beatrice and consider marrying her. She comes out and bids him come to dinner, unaware that Benedick thinks she loves him. Beatrice is as unflattering as ever, making Benedick's attempts to be polite even more comical. Benedick interprets her insults as veiled complements.