No idea why they are facepalming this post - people can demand the dev start adding in animals and that's ok or demanding despite years of how the story was presented everyone break characters and just have D suck BBC four years into a games development cycle but simply asking if this game can be played like other popular games (DFDessert comes to mind) where you can choose NOT to pursue the D but instead other Love Interests instead isn't a face palm worthy post.
Issue is the game as name implies was about F/D from the very offset - its the way it was for years till 2020 rise of the break character promotors which is turning the game into a hot turd of a mess as D suddenly starts developing desires for others completely out of nowhere to appease the vocal minority and MC is to suddenly be deliriously happy to share D after proposing to her and spending all the previous chapters being possessive as fuck about her as if a different author showed up 3/4 into a script and rewrote all the characters asking us to pretend the changes are organic and not off putting.
Still think its a decent idea and would at least be a much better foundation of a story to have D with others vs naïve besotted with F girl who didnt want to leave his side, desired nothing more than to move in with him and was over the moon at being proposed to by him suddenly turns into complete whore for any and all cock in a mile radius just because she has learned how to play hide the sausage in a couple of weeks. Still this has been overtly discussed for days now so I wont beat a dead horse and will just wait and see what final updates of the year brings in particular the end of year re-write of the older content. Who knows maybe this is something he will look into adding or at least not so much a no-D path but instead a renewed focus on the other LI characters for both F and D.
As a fan:
D is a fictional "human" (in the realm of fictional Donutistan) and was helped to break out of her fictional emotional (and in ways, physical) imprisonment by the end of Chapter 2, mostly with the help of the MC - though, aided and abetted by Elena, Jennifer, etc.
Since breaking from the princess tower that her mother constructed+guarded, and all that entailed, we have witnessed an "awakening" of D's individuality. Her character has been shown as keen to follow her own path, which has included romantic and increasingly realized sexual urges - influenced by the MC as they became closer (there's an argument he was manipulating her all along, but that's a different point), as Elena has increasingly made physical advances, by example of a friendly and swinging intimate couple who happen to be father/daugher and so forth. She has responded to these inputs and experiences by letting herself be open to new experiences and enjoying them as much as possible.
It's not always easy to watch kids/teens grow up and become someone completely different than they started as, or to become highly adult and independent when we thought they would always stay bound to their elders or past friends. But, you know, everyone finds their own path and for all sorts of reasons.
To that point, some players have complained quite loudly about how slow D's progression forward seemed to be in Chapters 1 and 2, wanting PinV and more from the original MrDots bucket list ASAP - skip all the dating and awakening stuff. Others thought it was just right or at least reasonable, for the most part.
It took awhile for D to simply build her confidence and accept experiencing an orgasm, if everyone remembers - that was offered as a significant milestone in her sexual health growth path and it could be argued that was a catalyst for her rapid sexual exploration, which had been repressed by her mother up until at least her late teens. Still, it took two whole Chapters of the game until she advanced to losing her virginity, which was presented as part of a larger triumph and literal climax in her maturity growth path (personal and sexual) at the time.
All of her gradual awakening and acceptance of sexuality was fully supported by the MC, who has encouraged her to try new things and not hold back on her imagination - with that type of support (or - it can be argued - corruption, manipulation) there have been no practical limits to her wanting to experience more of what she never tried to imagine before reaching adulthood. It's as if the floodgates were opened and no limiters were present, because she's been enabled AND encouraged to go with her feelings. Your best friend keeps making lesbian advances to you and it feels good, too? Sure, slowly give in and accept that you enjoy it. Find your F to be handsome and sexually appealing? OK, start with play-dating and let your deeper feelings grow, then progress to fantasies and live those out because nobody is holding you back. Meet a swinging, incestuous couple? Sure, trust them and follow their lead for visiting a "love club" and try couples sex in the same room. Friends and aquaintances are naturally horny - like so many adults - and find you incredibly attractive. Well then, being bisexual and open to sex with others only makes having threesomes (and more) seem completely rational and desirable, given the right context.
If you're complaining about D growing as a person with constantly expressed and newly experienced sexual urges or ideas, then maybe look back at her character's growth path in this years-old game. Chapter 4 was welcomed by many because her capabilities and possibilities are still unbound at this point and it would be a shame to just shut down her tale - and those of many other characters in DMD - just because you might feel the urge to contain her romantic bonds or expressions to the MC. Or to a time when she was still hopelessly naive and easy to manipulate. Or back to a point where she needed more guidance/coaching to even know how to express herself like an adult of her age range.
She's now independent-minded, making her own choices, deciding to experience what she wants and soaking in new things that resonate in her heart and physicality. If you can't accept much of what her character has been doing or may do beyond the MC's domain (or control), there is always the D-only path that MrDots' team has continually stated they are trying to keep interesting, even as they grow her beyond-MC paths further.
As a member of this community:
Please try to avoid even implicit kink-shaming in this thread: some players are enjoying D becoming unbound and trying new things, moving far from her innocent/naive days under her mother's thumb. In recent releases we see people complaining that she has more sexcapades and with whom - as if this hasn't been a long time coming or obvious across the past couple of years.
If you don't like where her story paths are going or her potential partners - for whatever reasons - you should certainly feel free to express your opinion, but I would recommend you try to avoid the appearance of biases against or condemnation for those who find those aspects of D's growth appealing.
It's like Longo McFap! said, imagine someone who thinks that instead of wanting to see wars among the stars in Star Wars, they just want to watch the Lars family do their moisture farming for 2 hours. 
