Mackenzie Phillips addresses decade-long incestuous relationship with famous dad, John Phillips

Mackenzie, 64, recently chatted with her half sister Chynna Phillips Baldwin via the latter’s YouTube channel about how even though she viewed their dad as a “genius,” she knew he had a “very, very dark side”, the NY Post reports.

Mackenzie — who first detailed the pair’s abusive affair in her 2011 book, High On Arrival: A Memoir — agreed with Baldwin, 55, that the Mamas & the Papas frontman was very unpredictable.

“Dad was something else,” Mackenzie said. “And I get a lot of criticism and a lot of trolling online for having forgiveness in my heart. Forgiveness because forgiving is for me, not for the other person.”

The substance abuse counsellor — who “was in rehab 10 or 11 times over a 30-year period” before she got sober — made sure to note, “Forgiving doesn’t mean I co-sign or agree with what I’m forgiving you for — or him for.

“It’s very complicated. It’s very, very complicated,” she added. “And yet, I am at peace.”

Though Mackenzie’s bombshell revelation initially caused major tension within her family, she and Baldwin were able to fully reconcile.

“It took a long time, but we came back together as a family,” the former actress said, admitting that she always feels “guilty” when she discusses “the conditions of [their] childhoods.”

But Chynna — who is married to actor Billy Baldwin — assured Mackenzie, “When I stood by you, I meant it with all my heart, you know? I really did. And I believed you. And I want you to know that I was proud of you for coming out [with your story] … even though it was painful for everybody.”

The Wilson Phillips singer went on to remind her sibling that they are among the “most dysfunctional Hollywood families;” their half-sister, Bijou Phillips, recently filed for divorce from Scientologist and convicted rapist Danny Masterson.

In her memoir, Mackenzie claimed that John first raped her on the night before her wedding to Jeff Sessler when she was 19.

The musician died in March 2001.

This article originally appeared on NY Post and was reproduced with permission