I'm going to say this with best intentions, as a warning, not as an attack. It's people like you who either assume, or more importantly, simply don't know enough about a subject (in this case psychology), that attempt to pretend like they do and want to "help" by indirectly judging, that can cause young/naïve people to start on a path of suicide or similar by convincing them that there is something "wrong" with them, when there isn't... Not only are you assuming that something is wrong with me based on "rape" fetish, but you even lumped together "excited" and "happy" as if they are the same thing and can't be separated (there is a huge difference between those two feelings).
First of all, almost unanimously, "actual rape" fetishes are tied directly to control, not suffering (not counting psychopaths, that's why I'm saying "almost unanimously"). About 60% of men have some level of a "forced sex" fetish. There is absolutely nothing wrong with that at all, as long as it's only "practiced" in fiction of course (that is why I'm here and not on a street raping someone). We all prefer control, it's natural state of mind actually, people like me just like that feeling a bit more. For example, I love a good rape scene with struggling/resistance because that resistance is what is actually showcasing your (MC's) control. Even in a scene where the character is somewhat suffering, my mind will focus on the control aspect and ignore the suffering for the sake of it (because I know it's fiction, I can ignore the suffering, I know it's not real). That being said, any kind of physical torture (blood, beating, or the like) or similar will make me squeamish and repulsed and not enjoy the scene at all. Without resistance, it's not "rape", legality makes no difference when we are talking about control (your mind), so sleep sex, time stops, hypnosis, etc., that's not rape, not in a real sense (ok, I might get off a bit on sleep sex, but just a tiny bit).
I don't want to turn this into another "rape" thread, there's enough of those and the dev seems to have a very good game on the way so I don't want to clog his page with this out of respect. I just got ticked off by your comment because when I realized my fetish when I was in my teens, I spent a few years thinking that something actually might be wrong with me, and if I was surrounded by people who made comments like yours, I don't even want to imagine how messed up my head would have been (imagine growing up/living hating yourself). Luckily, I trusted science more than people even back then and started learning about the psychology behind it to find an answer instead of going around asking people, so I turned out just fine. lol