Comment by Todoroki on SECRET RELATIONSHIP - Chapter 74 : The Sleepless Night (2)

Hmm..

Yeah..

yes he did but he slept with Soohyun when they were in high school i believe and then slept with Jaemin recently

yes he slept with both and that's why he was concerned if Soohyun told Jaemin, because it  would seem like he cheated with Soohyun on Jaemin. Even though he's not with Jaemin or Soohyun but he's been sleeping with Soohyun all this time

I think he slept with Suhyun recently too...i dont remember the exact chapter but when he was Sunghyeon , Soohyun came over there and Daon left with him