I wouldn't be surprised, if that is what MC is thinking. In order to fix the situation, is to make the other personality also fall in love with him. That way, when the switch happens, it wouldn't be too troubling. Or it could just happen naturally, and the NTR bait will be between the personalities, which would be interesting.It's time they start thinking about the throuple.
Why would you think that? There are three volumes out.wait, so is this series completed? This the final chap???