Aoki_Aku
I know I'm not the only reader, but I actually appreciated the way this was done very tastefully. if gave just enough details to let me envision it without cluttering it up with unnecessary stuff. I also appreciate their non standard relationship, since it consensual that it what matters most. they both wanted each other and they came to an agreement they both found fulfilling.
she kind of leaned towards this when she first inspected the bedroom in Montauk, so it isn't a thing against her secret nature. Personally I prefer it without the 18+ as it keeps it more intimate than carnal. I agree with other comments that he should be unmerged while he is with Misha in this way- she wants to be his, not shared with half a dozen freeloading entities at the same time.
Seems like there's a split, but if you already have the outtakes written up, so there's no extra effort put in to posting them, it doesn't really make sense NOT to do it. They're not in this book, so people that don't want them don't get them, while the people that do can seek them out. As long as there's no particular effort involved for you, seems like a win-win. However, that might be a pretty big assumption.