It's an experience that can make or break you. Find the wrong person, you can get lured in and they have access to where you're most vulnerable. Once they break that, even the strongest person will need time. But if you find the right one for you, you'll experience a happiness like nothing else. Your inside will feel vibrant, every thought of that person makes you smile, you can start to miss them so badly after an hour.
Even if it's simply chemicals, a mechanism to help us breed, it's worth experiencing at least once...though granted, when you're brokenhearted it does not seem that way.