Catechism of the Catholic Church §1605 — excerpt
Holy Scripture affirms that man and woman were created for one another: "It is not good that the man should be alone." , his counterpart, his equal, his nearest in all things, is given to him by God as a "helpmate"; she thus represents God from whom comes our help.
This translation is under copyright, so only the cited words are quoted here. Follow the link for the full text. Translation: English translation of the Catechism of the Catholic Church, 2nd ed. (Libreria Editrice Vaticana), as posted at vatican.va.