lol, Where it all Began is not realistic at all, in fact it caters so much to the fan-service fetish crowd that it makes the characters act like split personality npcs. I am sorry if you are so self centered to think that everyone in the real world shares your enthusiasm for sharing, swinging and cheating and are just in denial.
Do I think Being a Dik would benefit from having proper threats and rivals for the MC, yes, but that is mostly from a gameplay aspect, because I like to feel like I earned the relationship (At first I even hated seeing the girl's inner monologue, because it seemed like cheat codes to me), but lets stop pretending that people advocating for this type of content are even remotely concerned with the quality and 'realism' of the writing. Call a spade a spade...
Ok, time to start a fire with the most vocal crowds on F95, I played some of the best regarded/most popular games of their respective type, Where it all Began(NTR) and WMV(harem) and they are overrated mediocrities when compared to any of the top romances/vanilla type games around here, which should come as no ones surprise that when you heavily focus on fan service you throw out the window any semblance of story structure, character development and immersion. They might be stellar outlets to experience a kink, thats fair, but they for goddamn sure are not a good representation of how real people act.