If love is a behaviour then all thoughts are behaviours, and I’m not sure I would go that far, although expressing love definitely qualifies. But good point that there is a certain inertia involved due to how difficult it can be to undo conditioning, so it can take a while for the consequences of a change in behaviour to play out — sometimes years. Sometimes long, miserable years. I would point out regarding parents and children that their extremely close genetic relationship might cloud the definition of ‘self-interest’. Also, it wasn’t my intention to argue that people aren’t unique. Nor that we can’t love whatever collection of behaviours is unique about them.