1. Judging from this statement, B does not consider the crime to have been completed. If B gave up the crime due to his own reasons on the way, it belongs to the cessation of the crime. If B does not participate in the process and it still constitutes an attempt, it is a behavioral crime. If it is a behavioral crime, if he stops the behavior and surrenders, he may be given a lighter or reduced punishment.
2. A’s crime attempt is unsuccessful, B’s crime is still suspended, and the two do not interfere with each other.
3. A’s crime is suspended, but B’s crime is still suspended. If the crime is suspended, the punishment will only be provided by law.