Hey Belle, will you be polishing up on your scripts too? Sometimes it feels childish or comedic. Sometimes it doesn't feel like some of the things they talk are in a fantasy theme. Unless that's your intention then im sorry
There have been a few people saying similar things over the years, and I disagree just as strongly now as I did back then. Whatever this "fantasy theme" in dialogue is, it most likely has way more to do with your preexisting tastes in fantasy literature than what is actually acceptable for fantasy writing.
I'm not trying to capture the flowery prose of Tolkien, the unique vocabulary of Martin, or the misunderstood and overblown "thee/thou" nonsense used by fantasy authors who have no idea what they're doing or how those words were historically used.
I'm writing casual fantasy with a purpose, and that purpose isn't to shower you with fancy words for some kind of hypothetical "fantasy" theming that has no historical significance anyway. The purpose is to titillate and excite without trying to shove my way into players' minds and attempting to impress them with my vocabulary.
The game is meant to be comedic and lighthearted in its language outside of scenes that are designed to be dramatic or sad. I have no idea what "childish" means to you in an erotic adult game.
And if you're referring to Belle's dialogue, she's deliberately written as if she exists somewhere outside of our regular understanding of time and space, breaking the 4th wall with alarming regularity and making passing references to things that simply don't exist (yet or ever) in that setting. That's part of her schtick.