Holy crap!
I spent an hour this morning smashing through the first five episodes, with "skip dialogue" on the entire time, and chose all CHICK choices and only pursued Sage.
I spent the afternoon replaying episode 6, and I always assumed that you were railroaded into romancing Jill, but if you don't kiss her on the tennis date, hold her hand or take things further on Bella's couch, or flirt with her during yoga, you actually trigger a "just friends" path in episode 6.
And Jesus, the "just friends" version of the rehearsal scene is just super dark. Not "you can only save one" dark like in Acting Lessons, but just really depressing with how Jill beats herself up.