This basically has to do with how our brains work. We weigh negatives things in our mind much more than positive. Thats why even a good friendship built over ma

This basically has to do with how our brains work. We weigh negatives things in our mind much more than positive. Thats why even a good friendship built over many years with many positives can be ruined by a small mistake. Its core to survival to look out for negatives over positives, because it can avoid major trouble. Sympathy and compassion are things we need to work on to overcome our brains natural push.