My weird fantasies

When I was younger and dumb I cheated on a girlfriend, and now that im older I have fetish for revenge type sexual fantasies(Go figure!). The ones I really like are, I like it when a girl gets back at a cheater by doing something to his car, like keying it, sugar in gas tank, spray paint, any kind of vandalism is really hot to me. Another thing I just found the other day that really turned me was this horror movie short I seen on Youtube. It was called "Emptied" and it was about this guy who cheated on his girlfriend, but she was a dentist. So he went to see her, and she puts him to sleep and pulls all this teeth out, and you can tell she is really enjoying herself! I love seeing when cheaters get what they deserve. I get butterflies in my tummy thinking about these things. Another one thats not as extreme is from the movie "The Other Women" there is a part where there is like this prank payback montage of the the women getting back at her cheating husband, and she puts hormones in his drink, dips his toothbrush in the toilet, and hair remover in his shampoo... I guess these things are supposed to be funny to other folks, but to me they turn me on! Anyone else like this kind of idea? I guess im just wondering why i get off to this so much. I really love the emotional aspect of it all, and seeing people getting the comeuppance and humiliation they deserve.

Are Fetish and kinks like this bad? Sometimes I feel bad after getting off to these thoughts, and think maybe something is wrong with me.