My opinion about my binge eating is that it is purely a chemical reaction to sugar that makes me need to eat and eat once I have the first sugary food.
I binge eat when happy, sad, hot, cold, tired, energetic, to celebrate, to commiserate. If there is a Y in the day.
I don't believe there is an underling emotional reason. I may tell myself there is sometimes but I think that is my excuse to myself.
I was exactly the same with alcohol. It was a chemical reaction in my body. The first drink opened a bottomless pit for alcohol.