There is evidently a vital attraction which is very different from love. It usually wears off with time unless there is a strong deep affinity of goals, ideas and interests.
Marraige is a different matter. It requires a deep commitment which can come only if there is some glimmer of true love or else strong earthly bonds of family, habits, customs, language etc. Besides, long distance relationship is very different from living together in close physical proximity. Many unwanted things begin to show up in close…