Luna had always enjoyed the night, even when she was but just a filly. She never really knew many ponies who enjoyed the night. That is, until one fateful night when she met a unicorn and discovered that she's not alone with her feelings,
(This story was made for the May 2021 Pairing Contest)
Do you mean ponies that do show their love for the night? Or do I misunderstand?
Also you use both store and stores. I am not sure which you intended.
Perhaps you should try 'Normally when I eat at the castle at night, I do it alone'? Or 'When I eat at the castle at night, I usually do it alone'? Try not to use both normally and usually together, just one is sufficient.
Perhaps 'I can make an arrangement.'?
The only thing you seem to be really struggling with is punctuating dialogue. Keep practicing!
I agree with My name is R. The struggle is in punctuating dialogue and that's ok. It does take practice. Aside from that, your story is really good and I enjoyed it!