You're all assuming they're talking in a love way. Ricardo sees her as a little girl, everyone does, nobody treats her like a proper adult because she's crearly a child. And the red hair man is interested in her for her powers, it's obvious, he's always messing around with new things to make her eat them. The only one who's interested as a partner is the boy who already left.
The guy who always leaves for a long time is the male lead.
Calm down, enjoy the fluffyness!