I got all endings... overall, this wasn't bad, though I did find it somewhat lacking in the importance of choices. (Spoilers inbound.)
I'm honestly surprised the choice of whether or not to kill the attacker doesn't create a different ending. The difference in text is rather minimal, and the ending itself is considered the same as if she non-lethally restrains the attacker. If you plan on making more games in this style in the future, I'd like to see more consequences to individual choices beyond the relationship level.