“By engaging in pre-marital sex, a person is saying to his or her partner, ‘I am a person who is willing to have sex with someone I’m not married to.’ That person’s partner is also communicating this back to them. Even if the couple goes on to get married and remain faithful, doubts can enter into their thinking because of their past willingness to indulge in sex outside of marriage. These doubts can weaken their emotional intimacy even after they get married.”