You know that the old idiom: "It is better to have loved and lost than to have never loved at all."? Well, I used to think that was *******; how can it be better to suffer?: It's much less painful to know not of Love than it is to endure the sting of it's absence.
However, it is rarely ever more beneficial to take the easy way out: path of the Coward. Moreover, it is inevitable that you will lose the things you love and that they will lose you.
To Love requires that you are made vulnerable. To lose requires humility and integrity.
The Fires of Pain forge a stronger Self; The Fires of Pain nourish a wiser Self.
It is truly better to have loved at all; It's better off this way.