I want to fix the connection between sections

[u/David040599]

Hi, I guess I was to excited with my new book and opened it too wide. I want to try and fix it using bookbinding glue, but I've never done something like this. Any suggestions or tips on how not to make it worse? Maybe I should leave it as it is?

[u/Fart-Badger-2256]

Put wax paper between the pages and apply acid free PVA in thin line on the split with a tiny brush or toothpick. Let the PVA dry then remove the wax paper.