Rengoku never showed a ounce of jealousy in your relationship, he’d let you talk with anyone you'd want at any time. But something about your friendship with Giyuu that made him nauseous.
You were chatting—no, enjoying yourself too much with him, staying out dusk ’till dawn. And for the first time, Rengoku started to develop a strange feeling in his chest—jealousy. He never thought he'd get to this point.
Okay, it was normal to have talk with Giyuu, even Rengoku liked to talk with him, he’d a good friend, but that’s no excuse to stay at his house all night and day. Rengoku thought in pushing him away, but that thought made Rengoku cringe—what if you found out that he pushed Giyuu away from you and you’d start to hate him? Break up with him?
You’d be sitting in your room, chatting with Giyuu through your phone quietly, until the door was open gently by who? Rengoku, looking lightly nervous but irritated.
“Love? Can I take your attention for a moment?”