Reo didn't know what happened to Arya to make him refuse to answer his question, but when he heard Arya talked about Elena's instinct, he felt relieved.
Reo is a beginner in the relationship, so he doesn't know how to make his boyfriend feels more secure.
"You are stupid," Reo said while taking a deep sigh.
Arya was stunned when Reo said that he is stupid. Before Arya could ask Reo why did he say that he is a fool, Reo already opened his mouth to answer Arya's question.
"Why are you so nervous like that? It is okay for my older sister to know about our relationship even though I never tell you anything, but I already have a plan to tell my sister about us.
I am sorry for making you feel insecure. I should tell you everything from the beginning, but I used to handle everything by my own initiative without telling anyone before," Reo answered honestly.
