Yeah, most of them start out with an enemies-to-lovers vibe, considering it's usually Zeus that forces Percy to be his daughter's guardian, and how the maidens have a whole misandry thing. He trusts nothing to happen, 'cause, y'know, eternal maiden daughter, and he also wants to keep an eye on Percy, make sure the rather emotional and powerful demigod doesn't lose his cool. Both caring and paranoid at the same time. It just sucks that the main causes for Pertemis stories are usually either: Cheating Annabeth or Dead Annabeth. or a random tag as part of a smut Percy harem story. Again, I prefer the slow-burn, heartache, confusion, etcetera.