Love yourself. People treat you how you treat yourself.

In a little bit of time:

In the meantime: I love you.

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Notes: In other words, this writing also applies to not doing stuff that harms your own self. Lying is self-damaging. Anger, jealously, even envy are self-damaging. Hurting someone is hurting yourself. Justification is understandable, but not excusable. Keep open your heart.