You know who would have done a really good interview with Mary Kay Letourneau??
Dr. Phil..... "What the HELL are you thinking???"
I didn't see the 20/20 interview, but I've seen enough of this convicted child rapist on various other broadcasts (American Justice, etc) to know that she is just one sick individual. She sees absolutely nothing wrong with what she did, she justifies it by referring to Vili as though he's her soulmate and that they were meant to be together (ie, it's God's fault). She knows the law.
I've seen similar shows that deal with adult males who get involved with minor girls or boys. They use fluffy terms like "love" or "the feelings were mutual" to shift blame and "sexual preference" and "sexual orientation" to justify it - as though because they have these "natural tendencies", it somehow makes it OK. They just want to be "understood" and "accepted for who they authentically are".
I "understand" what they "are": child molesters, child rapists, paedophiles. There's no justification for it, none whatsoever.