Kousoku Renai

My college classmate Kyohei and I tried out a little BDSM to get out of a sex rut. I find myself getting strangely addicted the more we do it, and now.. The bruises on my wrist bother me; I can't wear short sleeves, and my sex drive is increasing by the day. This is so not good.. But when I tell Kyohei I want to stop, he locks me out on my balcony, stark naked..! What's to become of our escalating BDSM relationship?