Hi,
Glad you came back and posted. Just from my own past experience that one slip led me back to a similar pattern as Write. It can be a slippery slope, and I used to find myself justifying that I only had one drink, the next thing I knew I was bargaining with myself about just having a little more wine. I have been sober for over 21 months now, and it has been easier to be sober than it was to try to moderate.
Keep posting!!