I don't find anything weird about it, really. Helping Jill with her performance is a very sweet gesture and she's clearly grateful for it, but that's all it is -- a (very) friendly gesture. It doesn't create a romantic spark/tension the was a special date does (Jill is both too freaked out and focused on her own performance for it to happen) And that's what Jill's rejection ultimately boils down to -- whether she's experienced something with the MC that causes her to view him as a romantic interest, not just a good and dependable friend.Here, I try to think rationally, yes. That is, imagine the situation - you are doing everything possible for her, saving her performance. This is a very brave and dignified act, Tremolo shows that he will always cover Jill's back and will always be there. But she still rejects you because... you missed one date a few weeks ago.
Put it differently -- she doesn't "owe" the MC a romance because he's "saved" her. If she wants a romance, it's because she's experienced something with the guy that really turns her on.
Bella will potentially treat you like trash unworthy of her nor Jill based on a few minor events completely unrelated to how you treat her. Mind you, this isn't a complaint -- i find the resulting, slow rate and gradual development of understanding and friendship between Isabella and the MC much more believable and satisfying than the abrupt romance.Bella is not that demanding. You can be a DIK in her path, the main thing is not to be an asshole with her.