well John kind of right, jack is clearly gonna end up with grace who's whole character is:
likes jack
jealous
and I guess kind
while I do love this novel I wish some characters were more developed or jack had another love interest
i bieleve it should be a divine grade skill since he said even outworlders can't handle it alone even tho jack and other have divine treasures on them with no problem plus gods didn't even care about divine grade stuff so for a god to give it like that I think it's divine grade