thinking about the fact that max writes letters to her family members, to the other five members of the party… and to steve. yes sure, steve himself shows exasperation with how he’s ‘always the god damn babysitter’, and the kids all wind him up endlessly; but out of all of the older teenagers, max only writes a letter to him. steve isn’t just an annoying supervising teenager to the kids. he’s their found family, their found big brother, and the reason they’re so comfortable winding him up is because they know that they have this next level of understanding with steve. he’s their friend, he’s the one who looks out for them and cares about them, the one they know they can go to about absolutely anything, and he’s their big brother. and nothing can highlight that more than when max wrote letters to her closest loved ones, letters saying goodbye because she thought she was about to die and didn’t want to leave words unsaid, she wrote one for steve too. just as the party are max’s found family, so is steve.