The quote emphasizes that a loving relationship requires a deeper connection than just the two partners involved; it involves a spiritual element represented by God. When individuals focus solely on each other without a shared higher purpose or loyalty, they may struggle to find meaning in their relationship. This lack of a central commitment can lead to selfish behaviors and discord. In contrast, a relationship that includes a spiritual dimension fosters growth, understanding, and mutual respect. The idea is that love thrives best when it is grounded in a commitment that transcends the couple's desires. Ultimately, the quote highlights the importance of having a shared loyalty that enriches the relationship, ensuring it is not limited to mere emotional attachment but is instead a profound partnership.