Act of Ending Friendship [closed]

Solution 1:

English doesn't have a common word or term for a friendship breaking up, like it does for a romantic relationship breaking up (eg. divorce, break up, split up, separate).

A fall out is the noun that most commonly comes to mind.

fall out noun to have an ​argument or ​disagreement that ​ends a ​relationship:

Joan and I had a fall out over money and we're no longer friends.

You can use fell out as a verb.

Joan and I fell out over money and we're no longer friends.

You could simply say stopped being friends.

Joan and I had a dispute about money and we're no longer friends.

Joan and I had a dispute about money and we're no longer on speaking terms.

Joan and I had a dispute about money and we've stopped being friends.

Solution 2:

You could use the word "rupture", a breach of harmonious, friendly, or peaceful relations. It applies for both friendship and love.

Example: The rupture with Johnson was painful, but she came to see it as a liberation.

Solution 3:

Alienated, disaffected, estranged, former, antecedent, erstwhile, deposed, heretofore, and ci-devant come to mind.

  • Alienated: Cause (someone) to feel isolated or estranged, or to become unsympathetic or hostile
  • Disaffected: Dissatisfied with the people in authority and no longer willing to support them
  • Estranged: (Of a person) no longer close or affectionate to someone
  • Former: Having previously filled a particular role or been a particular thing
  • Antecedent: Preceding in time or order; previous or preexisting
  • Erstwhile: former; that until recently was the type of person or thing described but is not any more
  • Deposed: Removed from office or from power suddenly and forcefully
  • Heretofore: Before now
  • Ci-devant: From or in an earlier time (used to indicate that someone or something once possessed a specified characteristic but no longer does so); Origin...Early 18th century: French, literally 'heretofore'.

Per OED