How Do We Navigate Relationships?

Gabrielle's question is about navigating boundaries with someone who sounds to be an active addiction and this someone for Gabrielle is her dad. I know how painful it can be for so many of us as we do begin to witness our own habits and patterns, especially when we see them coming from the caregivers around us. So maybe dad over time might start to change. But again, this isn't a moment of Gabrielle pointing the finger to dad and saying, you do differently. She's already come up with some new ways to feel better. Now the question really is, do I have to communicate this directly to dad?