Much ado about nothing is a comic play in which there is a theme of love and deception. It is about people making something out of things that are not there, and people making things out of noting, noticing what other persons in the play have spoken, or have done, or what has been "seen" by someone. .
At the beginning of the play, Benedick is a light hearted bachelor who is set in his ways. He is an unconventional lover who will have nothing to do with commitment or marriage. He thinks of himself as a funny, witty, "manly" man. In those days a manly man is one who has value in military things. Like, they would "walk ten miles to see good armour".
In act two scene three we see Benedick's friends; Don Pedro, Claudio and Leonato, try to trick Benedick into realising his love for Beatrice by using his pride and character flaws against him. By the end of the scene, Benedick is no longer an unconventional lover, but is not quite a conventional lover either. A conventional lover is a lover who cannot think about much else apart from their "love", they dress smarter, they write poetry for their "love" and they can't eat or sleep properly. He is somewhere in the middle, because he did some things conventionally, such as writing poetry and taking more care with his appearance but he did not do all the things that a conventional lover would do, but he did other things with his time, like the reading he was going to do at the beginning of Act 2 Scene 3.
By this scene we know that Claudio and Hero plan to be married. Don Pedro is bored so he has decided that with the help of his friends, they would trick Benedick into realising his love for Beatrice and realise his stupidity.
At the beginning of the scene Benedick is by himself for a while and he has a soliloquy, so we know that this will be a speech where he is completely truthful. In this soliloquy, he speaks of his scorn for conventional lovers, meaning Claudio.
