Oh man, he's going to give her hell and I love it. I also love how I can weirdly see Justin and Lucy playing relatives. Anyway, Fern's not a damsel type but she's still the goddess of ~maidenhood and her mentality as such (slash the things that go with that) have killed every relationship she's been in. Or, you know, she's just killed the guy or turned him into an animal. She's got spirit.
As for their relationship, without Apollo around, I think Artemis'd start to see Eros as a pain-in-the-ass, brother type that she's been missing. Y/N?