The end of a relationship is not always a failure. Sometimes all the love in the world is not enough to save something. In these cases, it is not a matter of fault from either person. Some things cannot be, it's as simple as that.
Failure should be our teacher, not our undertaker. Failure is delay, not defeat. It is a temporary detour, not a dead end. Failure is something we can avoid only by saying nothing, doing nothing, and being nothing.
Successful people have no fear of failure. But unsuccessful people do. Successful people have the resilience to face up to failure—learn the lessons and adapt from it.