Why if she was having consentual sex with her father is she telling now. Comments?

This is a classic case of the Fathers drug abuse and keep in mind he was a convicted drug trafficker. A quick look with search engine

"She stated that the relationship began when she was 19 years old in 1979, after Philips raped her while they were both under the influence of heavy narcotics on the eve of her first marriage." (from wiki)

Both long term serious drug users so its not really all that surprising to me.