 According to the attachment theory, when you were a child, your way of thinking was shaped depending on how your parents treated you. If your parents were loving and caring, you learned that you can trust people to be there for you. You learned that you are someone deserving of love. And this is called a secure attachment. But if your parents ignored you, neglected you, what if they didn't respond to your crying and pleas for help? Then you may have developed an insecure attachment. That means that now you have feelings of low self-worth, you think other people are not trustworthy, or you have a strong fear of people rejecting you.