Didn’t he give off the vibe earlier in the plot that he found enthralling or enticing but hated himself for it? Now that he’s built some repertoire, maybe his instinctive feelings are taking over the rational ones (hence why he still refuses blood and the other vampire trying to owe him a favor)
I’m sorry but can someone please please please explain what in his psyche made him go from hating her to caring for her like out of nowhere basically