Simply let them go and find a positive way to respond or simply do not respond if it is no longer necessary to express the anger that is felt, always choosing to keep the conversation light and detached from any emotional negative hooks that others or yourself in the past have exchanged as a negative type bond. Depending on each person's situation, some connections are meant to be distant where others may be more local, such as family members. Each individual can alter how one will treat one self as well as how others will treat you with the very transitions you make in thoughts, words and actions that have creatively positive council. Many times the negativity that comes out from the subconscious is expressed vocally and is read as the negative affirmations that one has digested from the past. It is always a choice and a matter of will power to direct oneself positively in thoughts, words and actions.
Patience is certainly a key for self and others.
Recognize that all beings have their own personal timings of when they are developed enough to reach stages that are beneficial for the self as well as others. Although families have various negative habit patterns that became imbedded in the subconscious fabric of our minds, it is possible to delete those negative patterns that keep us from progressing into our lighter fabric of substance, which is the true self. All that have wronged you, have been wronged by somebody else and so on and so on. But now in this day and age that it is so recognizable, the application of our wisdom is most important at hand. Together and united we blaze through and onto new and very ancient trails.