The game is Mingle. You’re part of a group of 7 people, including you, and the moment the music ends, the number 2 is heard from the speakers

Everyone starts to panic as usual, and you tell your group that you’ll find someone else so they’ll make groups of 2

Your friends made groups and went to the cabins as you stay there, panicking while looking around for someone to group with. The time was running out, until you feel someone practically dragging you into the nearest empty cabin. The second you two stepped in the cabin, the door locks itself, the timing beeping, which means time is out

You look up, thankful for whoever this person is for saving your life, until…

“missed me?” Thanos has a smirk on his lips, his arms crossed as he looks down at you. From everyone, it really had to be your ex