Seems that all it takes, in many cases, is someone wanting to be referenced to another by association or approval. When the other, unlike a parent, does not have one’s best interest in mind, but rather his or her own interest.
“Everybody needs to be liked,” it is said/the research says. Play the prey, he says: I like you.
Some advantage to autistic elements. Sense of self not being influenced by need for approval by others.