Congrats on your 34 pound weight loss!
It's hard to accept when we revert back to bad habits once in a while. I have had a couple of bad binges since I've started too but as you basically said - it's done, pick up and keep going.
When I had mine it really was hard for me to realize how many days I had gone without binging, which is really the important thing. You have obviously changed something in the way you think about and can handle food since you started. If there is a slip every once in a while don't beat yourself up.
Have you thought of a reason it may have happened? Sometimes pinpointing why can help you stay out of that situation another time.
Your can do it!