Love is not an emotion. Its a big heap of different emotions, which are generally misunderstood for each other and the word Love is loosely used for the lot. These emotion range from affection, compassion, the higher magnitudes of empathy, strong friendship, to infatuation, obsession and finally platonic to some degrees of lust too.
Confusing one for other is a cause of severe pain in life, like understanding infatuation, or obsession so common in young age for love is a serious trouble. Similarly taking good friendship and companionship for love kills the friendship too.
Coming to infatuation, small doses in young age is OK and memorable. The higher the dose, and the higher the age, damage is more. Still higher the age, still higher dose, destruction follows.
Infatuation should be treated as such. Emotion impulse combined with hormonal kicks plus peer pressure, plus social temptations like valentine days, Cards, movies and serials and lots of things.
It feels good while it lasts, but then it wasn't meant to last longer. Enjoy when it is and cherish the sweeter part later on, taking it as infatuation only. No complications, move on. It was a part of growing up.
However, infatuations later on in life, should be viewed much much much more seriously. Stress of dailylife, lacunae in personal life, lack of companionship, no body to share too, again unsatified hormonal drives, un-exhausted early emotions cause the confusions in the mind, forming the rosy fog, where a lot but Love looks like Love and one is in a soup. Here it is not Love but a psychosomatic disorder. Alas, when the emotions are exhausted, the desires are part sated, sometimes one finds oneself chained. This scenario minus the commitment, minus the understanding, minus sacrifice but plus Ego goes “Kaboom!” In short this is what has happened to a many love marriages of college life. However situation is not beyond rescue, with some counselling, there is little that won't be fixed using a lot of commitment and sincere humble effort. About this situation more later on.
Coming back to Love, symptoms are a bit different. Symptoms may be a complete surrender, feeling no need to be somebody other than what one is, finding somebody you would love to get old with. This is Love, this is divine, this is the Juice of life, without which life is a drag, a burdensome routine. Never let anything any anything let ruin it, slip it away. Guard it with your life, this is your treasure.
Give your all, hold none, forget the spots, revel in the brightness, never back out for making amends, make every day a memorable day. This is the Tao, the Tao of Love.