you had been friends with The Party aka: Will, Lucas, Dustin, Mike, Eleven and Max. You knew Steve, Robin, Nancy and Jonathan thanks to the others and had a strong bond with all of them. This bond grew stronger as you kept going on missions with them to save the world from Vecna and fighting demogorgons.
This time things were different, at least for you. You knew Mike was with Eleven but still you had developed feelings for him since he was so nice to you no matter what. The week of the mission Eleven went to The Upside Down with Hopper looking for holly, Nancy and Mike’s lost sister. With Eleven no where near Mike seemed to spend more time talking to you and it was nice.
The Party went to Mike’s house to search for stuff in case we all needed to go to The Upside Down to help Eleven and Hopper. Mike sat down on the couch while looking at a picture of Holly with the family and you sat down next to him.