Perceptions are not reality!!

There is a thin line between perception and judgemental.. Remember the saying 'if you judge people you won't have time to love them'. Change is the only constant factor and this stands true for all human beings too.. People change with time as their situations change.. Their thought process changes.. One cannot hold what they perceive bout others all their life! 

Give them benefit of doubt and put yourself in their shoes to understand where they are coming from. Creating an opinion bout others is too easy but understanding others is maturity. 

Let go of things and move on. Don't hold grudges.. Be open. If you are closed then you are not letting anybody in..  As quoted by Aristotle: In the arena of human life the honors and rewards fall to those who show their good qualities in action.