But there is a definite, although largely unconscious, attitude in the Church that the divorced are less spiritual, less committed to marriage and/or less forgiving than the long-term married.
the history of the Roman Catholic Church is integral to the history of Christianity as a whole.
The major divisions occurred in c.144 with Marcionism, 318 with Arianism, 1054 to 1449 (see East–West Schism) during which time the Orthodox Churches of the East parted ways with the Western Church over doctrinal issues (see the filioque) and papal primacy, and in 1517 with the Protestant Reformation.
The Roman Catholic Church has been the driving force behind some of the major events of world history including the Christianization of Western and Central Europe and Latin America, the spreading of literacy and the foundation of the universities, hospitals, the Western tradition of monasticism, the development of art and music, literature, architecture, contributions to the scientific method, just war theory and trial by jury.
These articles make helpful supplementary reading on the question.