The primary friendship featured in The Three Musketeers is between four young gentlemen devoted to the King. Their friendship allows them to combine forces and defeat evil powers that might otherwise prevail. Friendship is thus portrayed in an immensely positive light in The Three Musketeers – the friends never argue, and they are always there to share with each other and support each other.
Out of the three Musketeers, D’Artagnan is closest friends with Athos.
The Man from Meung, also known as the Comte de Rochefort, and D’Artagnan are likely to become friends.