Ordinary language is all right.
One could divide humanity into two classes:
those who master a metaphor, and those who hold by a formula.
Those with a bent for both are too few, they do not comprise a class.
Some forms of moral criticism risk sounding like, 'why don't you live my life instead of yours?'.
'"He would be better off dead" can be said for many dubious reasons: the most dubious is that we would be better off if he were dead.'
Of course, another story has us both being adapted; 'adapting' as all of living nature adapts. This is the story where we sound stupidest, most oblivious, when we pride ourselves on our ability to adapt.
The story has it that we adapt, animals are adapted; but we will sometimes cravenly suggest that they adapt, too, like us, when we are reminded of any of the sometimes devastating consequences, to them, of our adapting the world to suit us. As if they had little animal tools, made little animal plans.
Strange that people build lives for themselves.
Now I would rather say, of course another person's absence can make your life seem empty.
Neither the world nor love is in need of a theodicy unless we make it so.
... and you?