Absentmindedness can be a sign of several things

Q: Is absent mindedness or forgetfulness a sign of love? This is what several writers say in movies and love stories.

Krishna: Hello! Absentmindedness can be a sign of several things, not just love. 

Absent-mindedness--lapses of attention and forgetting to do things -  operates both when a memory is formed (the encoding stage) and when a memory is accessed (the retrieval stage). 

According to scientific research being forgetful could actually be a sign of greater intelligence. 

Absent minded people usually have high IQs, are highly creative, and tend to be on the intellectual side. They may be well-read, intelligent, and have a particular skillset. Their brains are just “on-go” at all times. They have a difficult time slowing down.

If you keep thinking about something or the other  all the time, you tend to be absent minded about what is going on around you. 

Some introverts are absent-minded too because they will be engrossed in their own world. 

This brain fog can be seen in various forms: 

• Actual Absent-mindedness--lapses of attention and forgetting to do things.

• Blocking--temporary inaccessibility of stored information, such as tip-of-the-tongue syndrome. 

• Suggestibility--incorporation of misinformation into memory due to leading questions, deception and other causes. 

• Bias--retrospective distortions produced by current knowledge and beliefs. Present knowledge, beliefs and feelings skew our memory for past events. For example, research indicates that people currently displeased with a romantic relationship tend to have a disproportionately negative take on past states of the relationship.

• Persistence--unwanted recollections that people can't forget, such as the unrelenting, intrusive memories of post-traumatic stress disorder. 

• Misattribution--attribution of memories to incorrect sources or believing that you have seen or heard something you haven't.