The carelessness of a person can destroy a life of a person.
A life got destroyed due to someone's carelessness.
Friendship got destroyed with this carelessness.
But one who did the carelessness is the one who is hurt the most.
As they blame themselves their whole life for this thing.
They hurt themselves because, because of their carelessness, someone's friendship got destroyed.
They can't mend what's broken, and the friendship can't be fixed.
The carelessness of a person ruins the life of both party. The one that was careless and the one that suffered from this carelessness