Junpei is still running away, he was jealous when he saw Yui being picked up and he got sick because it reminded him of what happened when Yua was NTR, that flashed in his mind and he was hurt all over again, all he can do is hide, will he even go back to Yui's place now.

ただ逃げてるだけじゃん
来たのだって…いや、来る理由だって
他にないだろ
逆の立場で同じ事されてどう思うのだろうか？