There are people who get nervous about investing emotionally in relationships and friendships. They feel unworthy of being loved and appreciated by others or may have been hurt from previous relationships. With that being said, self-protection happens and it can be done in different ways.
Disengaging yourself mentally is a good way to protect yourself from emotional hurt but it can also avoid you from establishing emotional happiness and meaningful relationships. Distancing yourself by not engaging mentally may seem boring, aloof, hostile, and disinterested to others. Other people may feel that they are being ignored but in reality they do not know how to start a conversation and may feel a little awkward.