I got surprisingly invested in actually playing the game, I've never got on well with the spooky-thing-chasing-you games, but the map always being the same and the mechanics being so simple (and the monster being so easy to run away from), this ended up being surprisingly cosy. I was kind of surprised the sex scenes weren't centered around femdom, given the circumstances, but that's hardly a criticism lol.
One suggestion: have the sex scene take place where you actually encounter her, rather than a separate room. Banging a scary monster is one thing, but it has that extra punch if you're doing it right there in the middle of a hell-maze. And you can also let the player return to the game after that, maybe give them a 20sec headstart before she gets back up (or even vary the amount of time based on what sex scene you chose).