MELODIC'S PROFILE

My first impression of the true ending was that 'Mariko' (the playable character, I didn't realize that she was the stalker) killed the stalker, but since she turned crazy after the murder, I thought that she was going to go kill another 'Mariko' (like there was this whole chain of crazy stalkers leading up to the real Mariko o___o). But then I thought 'Mariko' killed herself with the two extra stabs at the end when she says "Goodnight, Mariko"
(also, for entertainment purposes, I thought I'd let you know that the 'bad smell' in Mariko's space was because of a dead body or something of the like.. xD)
I attained the true ending again after learning what it actually meant. Here are my comments/thoughts about things I found confusing:
-While the real stalker's offhand comments about the decor make more sense now, they kind of threw me off before.
-I think the door sound effects when Mariko comes in are fine - they aren't too excessive.
-I think that maybe in the dialogue when Mariko returns, the stalker should conjecture that it is 'her' trying to get in the house rather than 'that woman' because I think that leads to an easier interpretation of the playable character not being Mariko.
-It does seem strange that Mariko walks in the house with a knife on full display. Maybe a better way to do this would be to have her bring it out later? (additionally, I don't understand how Mariko knew somebody was in the house in the first place...maybe after reading the letter because wouldn't she see that it was opened?)
-Mariko's red text looks really threatening, but maybe I just need a lot of hints as to what's going on xD