I understand that Joonie has been hurt in the past so he's trying to protect his heart from hurting again and Ahjuicy has been reaching out to him trying to show him he likes him in his own way. I just hope our Joonie can fully see how hard Ahjuicy is trying and that he'll let Ahjuicy into his healing heart.
Ahjuicy, don't give up on our Joonie. Cheering on for you!