Why Good Grammar Matters
So, why does good grammar matter in a romance novel? After all, much like mysteries and other novels of popular fiction, people read these books for the stories inside them, not because of the grammar used to tell the story. Besides, if you used proper grammar in your novel, wouldn't that make your work seem stilted and awkward?
Actually … no. At least it shouldn't if you've done your job correctly.
Consider this: When a reader picks up your romance novel and starts to read, the only thing she should care about is the story you're describing. That won't be possible if she has to stop and reread passages because she isn't sure what you were trying to say. Luckily, you can easily solve this problem with a quick refresher course on the fundamentals of good grammar.
Rules of grammar exist for a reason, and the reason is to ensure that the words you put on paper make sense to the people who read them. Think of good grammar choices as just another tool in your writer's toolbox, much like a good word processing program or a dictionary.