I came to the same conclusion as Michael without cutting the Geo you will end up with a lumpy triangle at the hole.
One solution is to extend the parallel lines and cut that section and rebuild.

I have done a video of the process here: https://youtu.be/8V6pNRy0Plw
Added a new version with narration: https://youtu.be/kX_ozWvGbB4

Also attached the *fixed* file for you to compare. They won't be exactly the same but they are visually close and you won't have a triangle artefact.