For me, the meaning of dangerous relationship is one that is some way or another thought about a damaging relationship.
No, it doesn’t need to be a scornful relationship (in spite of the fact that there are, of those that go from adoration to abhor in just divisions of a second), since it is conceivable that a relationship can be to some degree conscious. But then be harmful.
In many features of life, people utilize their agreeable viewpoint to connect with different congeners to accomplish a typical end. One where the two sides advantage.