Wow, that whole backstory was very unexpected and heartbreaking.
Personally, I loved it and it reminded me that this kind of game can have very well done dramatic moments and not just sex and sex. You achieved something that is very difficult for me in this kind of games... to empathize with a character, and even more, a character that I hated until half an hour ago!
In just one little update, you have achieved a small story that is much more interesting than other games, even complete ones. Moreover, I repeat what I told you a few days ago, I love how you work together both the visual and sound/musical aspects, the use of effects, distortions, colors... and that piano melody increases the emotional charge of the whole scene even more.
The whole final sequence where we see Vanessa "deteriorating" is so intense, you captured the whole context of the scene in an almost cinematic and effective way.