We are not too familiar with the Divi page builder, but it would seem that the Divi page builder shows on the front end of the site, correct? There haven’t been any issues with other themes causing this type of clash in the post editor as Aesop Story Engine was built to work in the standard WP post editor. However, we do have a front-end editing plugin called Lasso that allows Aesop to be used on the front-end of the site. If you use Aesop in the post editor and Divi for whatever else in its page builder form, you may be golden.
Let me know if that clarifies things.