Hello! I appreciate the concern~
Before the sprite reworks that Tehngo did and the opening rework (which I'm working on now), updates were roughly every 2.5 months and included content for all split paths each time which, all told, each amounted to almost twice the total story content of my biggest chapter (which was a converged chapter before any split paths). That's only a little slower than updating monthly.
As for the concern of adding a route, Wayfinder doesn't have 'routes' in the traditional sense. The story is going to diverge and converge multiple times, and the reader isn't locked in to being with one character just because they went with that character first. Next time the story diverges into paths, the reader can choose a different wolfboi if they want. The story is still progressing the same regardless, and this new love interest has actually been planned from the beginning!
This love interest is going to be available in addition to, and not instead of, the other characters Fynn can choose to be with as is the case for all of the wolfbois. Though he won't have his own personal adventure with Fynn for quite some time, he'll still be available throughout the story all the same!
I hope you continue to enjoy Wayfinder!
Be safe~
Lavan