While we do not know many details of the marital life of St. Joseph and the Virgin Mary, we do know that they loved each other deeply.
St. John Paul II reflected on St. Joseph's virginal love in his encyclical, Redemptoris Custos.
St. Joseph was able to love Mary with a pure, chaste love that still brought them together, though not in a physical way.
His love for Mary was drawn from the source of love itself, allowing him to be a faithful and devoted husband.
Above all, St. Joseph loved Mary in a self-sacrifical way, giving to her himself, while also acknowledging the unique union she had with God.
St. Joseph's example shows to us the possibilities of human love and how physical intimacy is not required for a total gift of self to the other.