You can only lose what you cling to ~ Possibly Buddha
Nature never makes mistakes and in the end we have to let go and trust the universe with our life and other's lives as well. To love means you accept that you could lose this person or being some day and you accept that you could be hurt by such a loss. Don't try to control it, just accept it the way it is.
Be at peace
Best wishes
Solve et Coagula
Beautiful words!