Lol even if he does do some thing stupid. There already is a rift. Author has just not mentioned it yet. Little miss dojin in the new chapters is working on Junichi, and he's being stupid. She's the rift. Until dojin girl came into the picture their relationship was doing ok. Then Yukana pulled that BS. That right there created the rift. If any thing whatever happens will just serve to widen the rift farther, and lead to a possible breakup. To be clear again Yukana is still dating Dojin girl. Yes I forgot her name. So with now Yukana steamrolling ahead of Junichi, and this bs with dojin girl, is going to be a shit ton of drama.