That's the thing though they never had sex with you never mind "another man" because they're not real. You cannot be cheated on by someone you have never fucked.
I haven't talked about me having sex with them, nor I called them cheaters. I was talking about emotional investment. Also that was my attempt at depicting ntr fetishists.
because they're not real.
Yeah... so? BaDIK is a piece of media and as any other piece of media it establishes an emotional connection with a player. Here's an analogy for you. Why are people afraid of Freddy Krueger when they're watching Friday 13th or whatever this movie is called? They're very well aware he's not real, but they feel emotions nevertheless, fear in this case. Through music, story and suspense the movie engages a viewer and elicits emotional response from them.
Disliking a fetish is one thing but it often goes beyond that on here.
Can't you guess why? Because you(not specifically you) are annoying and can't take NO for an answer. You want a character that is not in a romantic relationship with a player to be sexually and romantically involved with another character for the sake of realism. But when DPC tells you NO, you start crying and claim "that's not really NTR" and it is "realistic" because of this and that. And when fans of that respective character show up and say they don't want that shit either, you start spamming blacked porn thinking you somehow "own" these fans or something, which only proves that you never actually cared about realism, you just want to satisfy your cuck fetish.