this is incredible, u have a NTR game were people have started to "like" the fat bastard, so now they need someone else to NTR the fat bastard, cause they are self inserting as the fat guy instead of the boyfriend xD hahaha this shit is epic.
You don't understand, most people don't insert as the guy who gets cucked, we insert as the guy who does the cucking(netori). That's why whether it Arato does the cucking or the fat bastard I don't care that much, swinging has its own flavour to it. I am not old nor fat, so inserting as Arato is even easier for me in some sense, except that I don't have that kind of character. Kendo is more sympathetic I guess but that's not what the thrill is all about. You are looking at the canvas not at the drawing.
For many people it's also about the corruption, exploring the forbidden. In a lot of cultures cheating is big taboo and there are a lot of people who enjoy exploring social taboos like this too.
For example, most guys on this site enjoy exploring the taboo of fucking your mommy. I am not interested in that but you may get the point(unless it's mommy ntr, then it's another story altogether hehe)
Overall your perception is very shallow.