I wrote LoF last summer. It was ment to be released for the app store, but I found phones to be too limited for the visual elements I wanted to use.
The only thing that's been changed is that I added a route for those who aren't particularly interrested in bringin her along for the rest of the story. This was done due to your passionate discussions for the game, which I really enjoyed. Nothing from that route has been shown to you yet.
The two dialogue lines that was changed has nothing to do with plot story changes, but due to the following reason:
1. I have got a lot of DM's with concerns from people that had gone through similar things in real life, making LoF unpleasent for them to read. There was no reason for me to keep them in there, when all they did was point you in a false direction.
2. Giving you slightly less to chew on when it comes to her explaining things later on.
The letter has been in the script the whole time. Though, I removed the shirt on the coathanger by mistake on some of the renders in chapter 1 to save memory for my then crappy gpu and forgot to bring it back when it should have been visually in the scene.