He explained that the opposite of the jealousy that feels like a stab to your heart and a stone in your gut is “compersion”—a sensation of excitement in witnessing your partner enjoy himself or herself while having sex with someone other than you. In the beginning stages with this new person, you might experience “NRE,” or new relationship energy—that rush of feelings and hormones and neurochemical changes that comes when you are connecting with a person sexually and emotionally and it’s all giddy and hopeful and passionate.
