Not to be able to forgive is a character of the weaker.
I`m with a new policy.Before I used to be sullen whole months if someone hurt my feelings and proud but now I realize that to be angry on somebody means to tremor yourself for that person`s disadvantages.It`s a waste of time and missing good chances.
I beg for pardon the person who was lowering my dignity for some months till now.I`m glad I did it.I feel better 
nobody could “lower your dignity”. that’s just a way you choose to feel. i’m glad about the thing you were strong and humble enough to do