Come on guys, another argument over this damn picnic. If the girl you like chooses another "friend" to spend time with, is she still interesting to you? Of course not, no one likes the friend zone. Same with Jill and that damned picnic
The difference being that the MC had already committed to helping Sage, a sick friend. Jill sprang the picnic on him as a last minute surprise. You think it's okay to leave a sick person in the lurch over a spur of the moment opportunity? That would be a DIK move.
Let alone the fact that Sage is not dying or anything and she is not left alone at the sorority either. She has people there who could/should lend her a hand if needed.
And your answer is basically "fuck her, she's not my problem, let someone else do it"
This is why we point out that the whole situation wad poorly written, and it further justified goblin hate. No matter what may or may not happen on the dumb fucking picnic, it is simply a fact that if you chose to care for someone potentially in need you get dumped.
Thd background issues don't matter, this is how it looks to virtually everyone examining the problem from the outside.
When you take Jill's established character displays so far in the story, there is little other conclusion to draw. Jill wants everything to be exactly her way and nothing else. She does nit respect anybody who says or acts otherwise, except possibly Bella. At every turn, it's really just about the naive girl wanting everything to be her delusional vision of perfection.
She needs a brick to the fucking skull ti knock some sense into her. The gods know it won't make her worse looking.