Responses
It was never love or affection, it was the twisted attraction. He thinks seeing the vulnerable side of Media is beautiful which at that time Psyche is in her body. And that she is also really a perfect queen candidate. So basically he is interested in the side of Media he never saw before, a twisted attraction.
That guy is a sick, sadboi, motherfucker anyway (╬ ̄皿 ̄)

Does Iaros have some kind of twisted love or affection towards Medea?