It’s better to be healthy alone than sick with someone else.

The line frames solitude as preferable to a damaging relationship: emotional “health” (stability, self-respect, safety) outweighs the comfort of companionship when that companionship perpetuates harm. It challenges the fear of being alone by arguing that loneliness is a lesser cost than staying in a situation that makes one “sick”—through conflict, manipulation, addiction dynamics, or chronic stress. The quote also implies a hierarchy of needs: personal well-being is foundational, and relationships should support rather than erode it. As advice, it encourages boundary-setting and the willingness to leave unhealthy partnerships, even when separation feels difficult or socially stigmatized.