Romantic love, according to Bioideology, lasts 6-24 months. It may get transformed into an oxytocin-based long-term attachment. Romantic love is a time period to develop intimate relationships & start having sex, which is one of the main sources of oxytocin. Romantic love is a form of a obsessive compulsive disorder, driven by low serotonin, high dopamine & adrenaline. Wait 6-24 months for romantic love to become a long-term attachment & only then make a decision to marry or to have a child!