Answer:
Symmetrical Relationship
Step-by-step explanation:
Symmetrical relationship refers to when people respond to each other in similar ways. The two parties mirror each other in balanced symmetric relationship. Example the success of one person is celebrated by the other, who then works to be similarly good, who is then celebrated, for their success, An unhealthy example of symmetry would be that of two siblings who are fiercely competitive.
Francois and Pierre are brothers who are constantly challenging one another, they are fiercely competitive and this is an example of unhealthy symmetric relationship between them.