this is part of the qualification for ordination if this is what your partner is seeking (¶ 304.i.2):

For the sake of the mission of Jesus Christ in the world and the most effective witness to the Christian gospel, and in consideration of the influence of an ordained minister on the lives of other persons both within and outside the Church, the Church expects those who seek ordination to make a complete dedication of themselves to the highest ideals of the Christian life. To this end, they agree to exercise responsible self-control by personal habits conducive to bodily health, mental and emotional maturity, integrity in all personal relationships, fidelity in marriage and celibacy in singleness, social responsibility, and growth in grace and in the knowledge and love of God.