6. Your friend has betrayed you
Friendship is all about genuine love, support, and healthy and open communication, and most importantly, trust.
One of the biggest deal-breakers in every relationship or friendship is betrayal. If your most valued and trusted friend has betrayed your trust, like talking badly about you behind your back, leaking your secrets to other people, making advances on your partner, etc., it will be very difficult to confide in them again because not only did they break your heart but also your trust and possibly even their chances of ever winning it back.
There should be no room for a dishonest or unfaithful friendship in your life, so it’s only natural that you would want to end it.