Self-deprecation is often our way of apologizing in advance. If we make sure that everyone else knows that WE know that there is something wrong with us, so we don’t have to worry about what they think of us. We’ve already told them what to think of us.
We warn people so they aren’t disappointed. We apologize for who and what we are. Obviously nobody would like us if they discovered the ugly things about us on their own, so we make sure they know ahead of time. That way we don’t get attached only to have them leave us…
Because we are ashamed of who we are, we assume others will feel the same way, so we apologize again and again.”