Thank you so much for the feedback!
don't worry I already have part of the ending planned out, and part of it's branching routes is what you suggested, if you're aiming for the true ending, it's going to be a hellish and long journey but extremely rewarding path for that. The whole story's progress for the whole game is somewhere around 5-10% complete as to what i currently have planned out, although the main NTR path story for Airi is somewhere around 50% done (excluding my planned side branches or subroutes which is going to take me a couple more updates as I'm working solo both on storywriting and dev work).
Thanks again for the feedback, i appreciate it.
As a side note, the first breakup option is currently already out for the patreon version (v0.6.0) starting with a different heroine.