The walkthrough calls it "Sebastian's Warning", so yeah, probably.
i finally got ti sort of. like i said i originally got the scene with sebastian but i reloaded cuz rose got stressed and i lost her approval. so i wasnt able to get the scene again but i did get the guitar pick one. i looked at the scene with sebastian in the memorabilia and iit was like that was enough to trigger the scene in the game. so i guess my suggestion would be check in case you did actually get the scene adn jsut dont remember getting it. then if you play it you should get the next scene in game. at least that was my experience good luck
Oh, damn, that worked, lol. Little glitch/oversight with the hair during one of the later scenes, though. That ending with the brother was kind of dark, though. Robin really needs to go to AA.
Anyway, thanks. I wonder if it fixed things with Collin. I doubt it, but I guess I'll check. I don't think I saw any new scene in the memorabilia for him, so it looks like that solution is just Faust-related.
Update: I used the cheat code to unlock memorabilia, looked at "The Duet" and then went back to hang out with him, but it didn't work like with Faust, unfortunately.
Another update: *flips table* I GOT IT! I have no idea how, but I got it!