If love drugs become more widely available, who should use them? This chapter introduces Stella and Mario, a married couple with dependent children who are in a ‘gray’ relationship—that is, a relationship that is not violent, abusive, or otherwise clearly dysfunctional, but which has lost its romantic spirit, despite many earnest attempts to keep it alive. The couple are unhappy. They are considering a divorce. They worry about how this might affect the children. They do still care about each other and value what they have built together. But they’ve run out of places to look for a shared sense of joy. The chapter argues that this is a very common situation for long-term partners, and that love drugs may soon be a viable option for supporting couples’ mutual well-being within such relationships.