Thank you so much for the kind words, I really appreciate it! Everything you've said is pretty much exactly what I was hoping to convey, so I'm really happy to hear it <3
With April, after bumping into her in the library you can then see her in the cafe to continue her story (though that's the last scene for now). The library scenes are just repeatable versions of the first meeting.
If you're ever unsure on how to progress, you can open the in-game phone, and click "help" in the bottom right. That will show you a guide on every major scene available, with hints on how to get them.
I'm hard at work on the next update, but it'll take a while - it's a big one!
Thanks again, I hope you enjoy the rest of the game ^^