(This is completely off of my memory)
At the party (for the company, I think) the red-haired man asked Jiwoon to have a drink with him. He did but was drugged in the process.
The red-haired man called Suha into the room and that's when Jiwoon stumbled down the stairs and could barely walk or gain much strength to do anything.
My memory from here is wish-washy but the most I can remember is the red-haired man giving Suha an ultimatum. (I think) Suha didn't want anything to happen to Jiwoon so he kissed the red-haired man and he took him to his place or a nearby love hotel.
Before any sexual acts were performed I believe that Suha kicked the red-haired man and ran till he reached his friend's house. (the one with the ponytail) I think he left for work when Jiwoon arrived there.
Jiwoon was still drugged and wasn't in his right mind so they had sex (I'm not sure if there was consent) after Jiwoom awoke and raw the hickies / bite marks all over him I think a mix of fear and guilt washed over him so he went outside.
From there Suha assured him that he's okay.
From that night, while Suha was getting sleepy in bed he said something about visiting the red-haired man again, that's when Jiwoon started to act possesive over him. To protect him and keep him from harm.
AHHH from the hiatus I don’t remember much but also I definitely don’t love a scary hospital cliff hanger for the start of a season