
The current plot just flew from my mind... could someone explain to me whats going on?

Basically (I already forgot the names sorry) the guy arrested (let's call him band-aid) was forced to go to this event that involved his older sister and her fiance. Band-aid had a small convo with the fiance and told him he knew his real motive for the fiance marrying bandaid's sister(for the money). Later at the event, while band-aid was outside(I think he was leaving the event) he caught the fiance kissing another woman.(I think it was like a goodbye kiss and he was leaving her for good. But he still got caught cheating) then band-aid beat the crap out of him and everyone saw them. Later, band-aid's future boo went up to band-aid's car to meet up with him and saw the fiance leaving from band-aid's car. After the fiance ran from the car, band-aid came and met up with his boo and his boo took him to his apartment since band-aid was beat up from the fight. Then in later scenes, band-aid's boo went to band-aid's apartment but before he can meet up with him, band-aid got arrested by detectives who found the drugs in his car. So now, from the camera footage in the lastest chapter, we can guess that the fiance put those drugs in band-aid's car for revenge. Sorry if it's difficult to understand. Tried my best to not leave any holes in here...
My heart hurts, someone pls just end me already SEHUNNNNNNN