A a reader i must admit that i don't read the flash stories until they are completely finished, because like you i get annoyed at the short chapters.
However, as an author i do these flash stories so that i can guarantee to my readers they have at least something to read from me each week (well, most weeks). I am working on a longer story but it will be a long time until that is ready even for editing as i am having to write in my spare time of which i don't have a lot.
I am glad you liked the characters and i hope you enjoy it on your reread when you get time to do it.
Thank you for commenting