In a weird way i feel like the situation with Helena makes Eliah act his age a lot more, in the last arc he was very stoic. I think it's why Helena decided to start doing it with him. Not a healthy or moral thing but i don't think a story portraying something means it's endorsing it. And it makes sense with Helena's character, though it would've been better in the long run for Eliah if he didn't sleep with anyone while living in the brothel, this is going to end up giving him weird complexes later in life lol