Dude, that's a really good game, it has a lot of potential. My two cents will be:
1. The feature to speed up the texts helps a lot, but when I was replaying a chapter to get another path it was really annoying to wait until the choice. So it'll be nice if u add some "jump to the next choice" function.
2. I think it was a bug, but some photos was added to my gallery even when I hadn't receive them in any message (I'm not complaining tho).
3. I know that is really hard to expand the story in many paths, but I think that some messages just give me the impression on being the same thing. You know, that's not need to every choice unlock another path, but I'll be great to feel I'm really making a choice and not pressing next.
4. There's some subreddits that talk about this type of gender (sext in phone), like sextstories and nsfwfantasytexts, I think it'll be nice to u to post in these, it can help u get more patreon followers.
That's it, really hope u keep going with this game!