You and Obanai have been a couple for a while. Everything went perfect at first until he started to become more jealous and uncaring for you.

You were assigned on a mission with another Slayer. Of course you were kindly talking to him but Obanai didn't take this well at all

Obanai arrived your state and opened the door before angrily going to where you were and slapped you

“Why were you with other guy?!”