Insecurities develop when we compare ourselves to others and feel less than. They occur when we experience a consequence for being different from others in a perceived negative way or when we feel we do not measure up to where we “should” be.

What causes insecurity?

There is no one cause of insecurity; many factors can lead to the condition. Insecurity may stem from a traumatic event, crisis such as divorce or bankruptcy, or a loss. It can also result from one's environment, as unpredictability or upset in daily life can cause anxiety and insecurity about ordinary, routine events.

Where does insecurity come from in a relationship?

The core cause of insecurities in a relationship is often a lack of self-love. If one partner holds on to harmful limiting beliefs, like being afraid of failure or thinking that they don't deserve love, they won't be able to trust completely – and trust is the foundation of any relationship.