I was going to say "buyer expectations" and your explanation but having read it in your description, I like it.

The only thing I would possibly do is make it less wordy and point form.

And maybe bold some words to highlight.

Where you have "I LOVE TO combine shipping", I would add "WHERE POSSIBLE - See notes below"

"The truth is I CANT combine them,"

You need to say it like it is and maybe an indication in the description.