Mia as painful as the incident was, you can use it as motivation to stop drinking. Admitting you have a problem is No. 1, and by coming onto the forum, you seem to be aware of it.
The best apology you can make to the other guests and B&G is to stop drinking. It will show them you're serious (but don't tell them if you're not).
You might not be aware of the AV, or Alcoholic Voice, which is the reasoning in your head that convinces you it's ok to start drinking again. Expect to hear it soon.
Keep the memory of the distress you caused, and your embarrassment fresh in your mind - write it down if you start forgetting and read it before you have a drink.
Sobriety isn't about deprivation. For me it's meant I can relax, knowing I don't have to try everything not to drink too much, all the time wanting just another glass.