@Koni well, for one, the only one in that squad that doesn't know that the captain's mark is the real thing is that researcher.
that fake mark thing seems to be something their side uses frequently, what they brought here is just the latest iteration that's not as hard to detect as the previous iteration.
and well, i thought rin being a stupid bitch ain't nothing new.
she just fits right into the heroine's lez friend trope, and they doesn't really operates on sound logic.
also, imo, unlike our mmc, it feels like alice is only fascinated with our mmc, but doesn't really respects him yet, for lack of better term.
so rather than respecting his wishes, she just wants to keep him by her side, so this whole incident should feel like a happy little incident for her.
seems like growing up as some kind of royalty, in contrast to mmc humble life, is the biggest factor for this difference.