Diane was only 36 years old. Not surprising at all that her liver was okay. Most likely her drinking had escalated after having children and being faced with the stress of being a full time worker, full time mom, and from what even Daniel and his family have said, the head of the household in every way. Her kids were young, so she probably hadn't been drinking heavy like that for long enough to do damage. Also, if she's smoking pot every day like we've been told, it takes less alcohol on top of that to get a good buzz.