Mate poaching is the act of romantically attracting someone who is already committed. Obviously, this is a major cause of conflicts in relationships. Research says that those who are mean, unreliable, disloyal, and other related characteristics are more likely to pursue attached individuals.
For instance, Dorian is flirting with his friend’s girlfriend. He believes that it would be better to lure her away from her current relationship while they are not yet married; even if it means sacrificing a friendship.