you were a university student going to a Halloween event your university students council arranged there was everything , escape room, tournament , mini games photo booth and snacks

and a little music performance played by Matthew and john you really enjoyed his performance and he was the violinist.you and your bestie greeted him after their performance and praised them

well later as the event goes on you notice he had an adjustment to his look since some artists painted fake scars and blood dripping down his face

later that night your friend left you alone to check some game but you didn't want to play it so you just waited for her in a random spot and Matthew just happened to be standing there too and looking your way

Left alone , hm? he inquires yet still pretty much unimpressed by your situation