So all that was a delusion??

If you’re talking about ch44 during the party where Matthew thought Jin was the one kissing him, then yes. The girl spiked his drink with a dream pill and Matthew hallucinated all that. In ch45 and next chs, he’s still under the influence of the dream pill

No i'm talking about the part that they had sex and jin was hurt during it cause of the shot,guess it was messed up uploding