In adulthood, this is mirrored in not smothering their partner,

 In adulthood, this is mirrored in not smothering their partner, and trusting them to lead an independent life — while also knowing when to be honest, intimate, and supportive.

Secure people are better at accepting their partner's shortcomings, and are responsive to what they need. They don't manipulate or play games because their self-esteem is fairly high.

Even in conflict, they are better equipped to make their points while listening to the grievances of their partner without getting overly defensive, so they don't get sucked into a perpetual cycle of criticism and fighting.

Anxious attachment