You’re welcome! But having just double-checked my sources, I find I’ve misremembered the screenreader problem. As you can see at the bottom of the wiki here:
it’s a double line_break, not a single one, that messes with screenreader function. Sorry for misleading you.
Having said that, I’d still strongly recommend against using line_break between your paragraphs. (Who have you seen who does that in their games, out of curiosity?) It’s much easier for most of us to read paragraphs that are set off by para breaks rather than ones separated only by line breaks – especially since ChoiceScript can’t indent the text it displays, so you can’t use the typical solution for helping readers of single-spaced paragraphs know when a new paragraph is starting.