Note: The story is fictional, this is my own puzzle.
My vegan girlfriend has gotten upset with me buying marshmallows again! Before leaving this morning, she stacked up all my marshmallows by the door with a threat.
Can you decipher what the note is telling me?
Bottom text transcription:
A B D EB / E B B D / E EB / E B A
The bag of marshmallows contained 20 marshmallows in total