This is where two people make a commitment to each other based on their passion. Unless intimacy develops over time, this relationship most likely will end. Ah yes, companionate love, where intimacy and commitment are present without any sexual passion. Passion and intimacy without commitment is Romantic love. When the passion fades, and the intimacy wanes, the relationship ends.
Love is friendship that has caught fire.
It takes root and grows, one day at a time. Infatuation is marked by a feeling of insecurity. You are excited and eager, but not genuinely happy. There are nagging doubts, unanswered questions, little bits and pieces about your beloved that you would just as soon not examine too closely. It might spoil the dream.