Honestly weirdly enough becoming a murderer "in self defense" actually makes Gomi look like a more normal person compared to 2 chapters ago when he was menstrual pad trashcan office bathroom masturbation affair man, and that's without the lolicon rape doujins he makes which is already can of worms waiting to be opened
Anyway Gomi is not a good guy, and Yumezora shouldn't have gotten involved with him, but what is done is done
She should bounce away from him now that her abusive husband got killed, in a way this is an opportunity for her to start fresh, everything around Gomi points towards him becoming even worse than glasses guy, since right now the only "positive" thing he has going on for his life is his toxic codependent relationship with Yumezora, and there's no way anything good can come from such a start