Full context:   Philosophically, love is often categorized into four types: love as a union, robust concern, valuing, and emotion. Love as a union suggests love forms a "we" by merging individual identities, as proposed by thinkers like Roger Scruton and Robert Nozick, who argue this fusion enhances shared care. Critics, however, contend that union threatens individual autonomy, though Nozick and others believe this merging enriches love. Michael Friedman offers a compromise with his federation model, where love unifies yet preserves individual identities.