The advantage of having no family ties, no children, no husband or lover, is that it makes you invulnerable. Every person you love is a weakness in your armor. When you care about no one, you can be fearless because the world cannot destroy you, the way it almost destroyed me. That’s the lesson I learned from Danny, and for years I have avoided attachments, grown accustomed to a life unfettered by affections. But relationships have a way of creeping up on you. You may not register the little jolt of oxytocin released into your bloodstream whenever your neighbor waves at you, or when his
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