There is an actual study done on why do we hurt the ones we love. Psychologically (and statistically), people who we are likely to cause harm, verbal, emotional or physical, are likely to be on someone that we know. Professor Deborah South Richardson of Georgia Regents University dub this phenomenon “everyday aggression.” Focus on the definition of aggression is based on the intent and not of the result if it end up hurting someone. If you plan to hit a person with a ball, it’s not whether it hits or misses, but rather if you intend it to hit the person. Anyway, there is still no clear evidence that shows why we are more aggressive to the people we know. Could it be we spend more time with them? Could it be the relationship feels more significant? It’s still unknown, but what we know is that they involved us to be opening up to each other.